# Biolab RAPID-PAP Nuclear Stain 500 mL | Cytology PAP Stain

## Biolab RAPID-PAP Nuclear Stain – 500 mL | Professional Cytology PAP Stain

**Biolab RAPID-PAP Nuclear Stain** is a professional cytology staining reagent designed for the **nuclear staining stage** of the Biolab RAPID-PAP Papanicolaou staining system.

It is supplied in a **500 mL laboratory pack** and is intended for use by trained cytology, pathology and diagnostic laboratory personnel.

This listing is for **RAPID-PAP Nuclear Stain only**. It is not the complete RAPID-PAP staining kit.

**Brand:** Biolab Diagnostics  
**Product:** RAPID-PAP Nuclear Stain  
**Catalogue No.:** CY 1547  
**Pack Size:** 500 mL  
**Category:** Cytology / Papanicolaou Staining Reagent  
**System:** Biolab RAPID-PAP  
**Primary Role:** Nuclear Staining  
**Intended User:** Professional Laboratory Personnel

* * *

## Primary Uses & Applications

Biolab RAPID-PAP Nuclear Stain is intended for the nuclear-staining stage of professional **Papanicolaou / PAP cytology workflows**.

Typical applications include:

-   Cervical PAP smear staining
-   Gynaecological cytology
-   Non-gynaecological cytology where validated
-   Cytopathology laboratories
-   Hospital pathology departments
-   Diagnostic laboratory cytology
-   Medical college cytology laboratories
-   Teaching laboratories
-   Research cytology applications where appropriately validated

The reagent should be used according to the current Biolab RAPID-PAP procedure and the laboratory's validated staining SOP.

* * *

## How RAPID-PAP Nuclear Stain Works

Papanicolaou staining uses multiple staining and processing stages to create contrast between **cell nuclei and cytoplasmic structures**.

Biolab RAPID-PAP Nuclear Stain is used at the stage intended to provide **nuclear contrast** before the subsequent cytoplasmic staining and processing steps.

The complete Biolab RAPID-PAP product family includes:

-   **RAPID-PAP Nuclear Stain**
-   RAPID-PAP Cytoplasm Stain A
-   RAPID-PAP Cytoplasm Stain B
-   RAPID-PAP Dehydrant
-   Complete RAPID-PAP Stain Kit

When used in the correct validated sequence, the individual reagents support differential cytological staining for microscopic evaluation.

**Important:** Biolab's public Nuclear Stain page does not currently publish the exact dye composition or specific contact time. The current bottle label and manufacturer IFU should therefore be treated as the definitive technical reference.

* * *

## Key Features

-   **Brand:** Biolab Diagnostics
-   **Product:** RAPID-PAP Nuclear Stain
-   **Catalogue No.:** CY 1547
-   **Pack Size:** 500 mL
-   Professional cytology nuclear stain
-   Part of Biolab's RAPID-PAP staining range
-   Designed for PAP / Papanicolaou cytology workflows
-   Individual replacement reagent
-   Suitable for pathology and cytology laboratories
-   Convenient 500 mL laboratory pack
-   Biolab catalogue lists approximately 3-year shelf life
-   Commercial manufacturer listing states room-temperature storage
-   For trained professional laboratory use

* * *

## Role of Nuclear Staining in PAP Cytology

The nuclear staining stage is important because cellular nuclei contain morphological information used during microscopic cytological evaluation.

A properly performed nuclear staining step helps provide:

-   Clear nuclear definition
-   Improved contrast between nuclei and cytoplasm
-   Better visualization of cellular morphology
-   Consistent slide interpretation
-   Appropriate preparation for subsequent cytoplasmic staining stages

The quality of the final result also depends on fixation, specimen quality, stain sequence, timing, washing and the remaining processing steps.

* * *

## RAPID-PAP Nuclear Stain vs Other RAPID-PAP Components

| RAPID-PAP Component | Primary Role |
| --- | --- |
| **Nuclear Stain** | Nuclear staining stage |
| **Cytoplasm Stain A** | Cytoplasmic staining component |
| **Cytoplasm Stain B** | Additional cytoplasmic staining component |
| **RAPID-PAP Dehydrant** | Dehydration / slide-processing stage |
| **Complete RAPID-PAP Kit** | Complete multi-reagent rapid PAP staining system |

**RAPID-PAP Nuclear Stain is not interchangeable with Cytoplasm Stain A, Cytoplasm Stain B or Dehydrant.**

* * *

## Benefits of Biolab RAPID-PAP Nuclear Stain

-   Designed specifically for Biolab RAPID-PAP workflows
-   Supports consistent nuclear staining
-   Convenient 500 mL laboratory pack
-   Useful as an individual replacement reagent
-   Allows laboratories to replenish Nuclear Stain without replacing the entire kit
-   Helps maintain a single-manufacturer RAPID-PAP workflow
-   Suitable for routine cytology and pathology laboratories
-   Supports professional PAP smear slide preparation

* * *

## Is RAPID-PAP Nuclear Stain the Complete PAP Kit?

**No.**

This listing contains only:

**Biolab RAPID-PAP Nuclear Stain – 500 mL – Cat. No. CY 1547**

It does not by itself include:

-   Cytoplasm Stain A
-   Cytoplasm Stain B
-   RAPID-PAP Dehydrant
-   Clearing reagents
-   Mounting medium
-   Other complete-kit accessories

If the complete staining system is required, order the complete Biolab RAPID-PAP Stain Kit.

* * *

## Use within Biolab's Rapid PAP System

Biolab separately markets the complete RAPID-PAP system as an approximately **3-minute Papanicolaou staining kit** for professional cytology workflows.

Nuclear Stain is supplied separately for laboratories that need to replenish this individual reagent.

The approximately 3-minute claim applies to the **complete validated RAPID-PAP workflow**, not to this bottle alone.

* * *

## General RAPID-PAP Workflow

A general professional workflow may include:

1.  Prepare the cytology smear.
2.  Fix the specimen according to the laboratory SOP.
3.  Apply **RAPID-PAP Nuclear Stain** according to the Biolab procedure.
4.  Complete the prescribed washing / differentiation steps.
5.  Use Cytoplasm Stain A.
6.  Use Cytoplasm Stain B.
7.  Complete the required washing steps.
8.  Use RAPID-PAP Dehydrant.
9.  Perform clearing and mounting as required.
10.  Examine the slide microscopically.

**The exact sequence and timing must follow the current Biolab IFU and your validated laboratory SOP.**

* * *

## Professional Cytology Applications

-   Cervical PAP smear preparation
-   Gynaecological cytology
-   Cytopathology slide staining
-   Hospital cytology departments
-   Diagnostic pathology laboratories
-   Medical colleges
-   Teaching laboratories
-   Non-gynaecological cytology where validated

The exact specimen type and suitability must follow the laboratory's validated PAP cytology procedure.

* * *

## Storage & Shelf Life

Biolab's catalogue lists a **3-year shelf life** for RAPID-PAP Nuclear Stain, while the current commercial listing specifies **36 months** and **room-temperature storage**.

Recommended professional handling includes:

-   Keep the bottle tightly closed.
-   Store according to the current manufacturer label.
-   Protect from contamination.
-   Do not return used stain to the original bottle.
-   Do not interchange caps with other RAPID-PAP reagents.
-   Do not mix different reagent lots unless formally validated.
-   Do not use after the printed expiry date.

**The actual Biolab bottle label and current IFU take precedence over general website information.**

* * *

## Product Specifications

|     |     |
| --- | --- |
| **Product Name** | RAPID-PAP Nuclear Stain |
| **Brand** | Biolab Diagnostics |
| **Catalogue No.** | CY 1547 |
| **Pack Size** | 500 mL |
| **Product Category** | Cytology / PAP Nuclear Stain |
| **System** | Biolab RAPID-PAP |
| **Primary Role** | Nuclear staining stage |
| **Application** | Professional Papanicolaou cytology workflows |
| **Storage** | Room temperature according to current commercial manufacturer listing; follow bottle label |
| **Shelf Life** | Approx. 3 Years / 36 Months; verify actual bottle expiry |
| **Exact Composition** | Refer to current Biolab label / IFU |
| **Contact Time** | Follow current Biolab RAPID-PAP protocol |
| **Intended User** | Professional Laboratory Personnel |

* * *

## Why Buy Biolab RAPID-PAP Nuclear Stain from Microsidd India?

PAP staining reagents can differ in **formulation, component type, staining sequence, pack size and manufacturer compatibility**.

Microsidd clearly identifies this listing as **Biolab RAPID-PAP Nuclear Stain – CY 1547 – 500 mL** to help prevent incorrect ordering of Cytoplasm Stain A, Cytoplasm Stain B or Dehydrant.

| Buying Factor | Microsidd India | General Online Store / Marketplace | Typical Offline Store |
| --- | --- | --- | --- |
| **Exact Component** | Nuclear Stain clearly identified | May be listed simply as PAP stain | Depends on staff knowledge |
| **Catalogue Number** | CY 1547 clearly stated | Often omitted | May require physical pack inspection |
| **Pack Size** | 500 mL clearly stated | Seller dependent | Depends on stock |
| **Component Guidance** | Difference from A, B & Dehydrant clearly explained | Listing detail varies | Depends on staff expertise |
| **Professional Information** | IFU and SOP verification emphasised | Seller dependent | Usually verbal guidance only |
| **GST Invoice** | Available for eligible orders | Seller dependent | Store dependent |
| **Bengaluru Presence** | RT Nagar, Bengaluru | Seller location may vary | Depends on local availability |
| **India-Wide Ordering** | Available to serviceable PIN codes | Platform dependent | Usually local purchase |

* * *

## Buy RAPID-PAP Nuclear Stain in Bangalore

**Microsidd India** supplies cytology stains, pathology reagents, laboratory consumables and professional diagnostic products from **RT Nagar, Bengaluru**.

Customers searching for **Biolab RAPID-PAP Nuclear Stain Bangalore**, PAP Nuclear Stain Bengaluru, cytology stain near me, Biolab PAP reagent RT Nagar, cytopathology stains Bangalore or Biolab Diagnostics supplier Karnataka can check current availability through Microsidd.com.

Laboratories requiring multiple bottles should confirm current stock, batch and expiry before ordering.

* * *

## Microsidd India – NAP

**Business Name:** Microsidd India  
**Address:** #09 Green Chambers, 14th Cross, RT Nagar, Bengaluru – 560032, Karnataka, India  
**Phone / WhatsApp:** +91 63667 72288  
**Email:** support@microsidd.com  
**Website:** https://microsidd.com  
**Working Hours:** Monday to Saturday, 10:00 AM – 6:00 PM IST

[**View Microsidd India on Google Maps**](https://share.google/NWhhEfmvlEyIfAShq)

Browse related products in [**Microsidd Laboratory Needs**](https://microsidd.com/collections/laboratory-needs).

For Bengaluru ordering information, visit [**Microsidd India – Laboratory & Medical Supplies Bangalore**](https://microsidd.com/pages/microsidd-india-bangalore).

* * *

## Frequently Asked Questions – Biolab RAPID-PAP Nuclear Stain

### What is Biolab RAPID-PAP Nuclear Stain?

It is the nuclear-staining component of the Biolab RAPID-PAP Papanicolaou cytology system.

### What is the pack size?

The bottle contains **500 mL**.

### What is the catalogue number?

Biolab identifies RAPID-PAP Nuclear Stain as **CY 1547**.

### Is this the complete RAPID-PAP kit?

No. This listing contains only the Nuclear Stain.

### Is this Cytoplasm Stain A?

No. Cytoplasm Stain A is a separate reagent.

### Is this Cytoplasm Stain B?

No. Cytoplasm Stain B is a separate reagent.

### Is RAPID-PAP Dehydrant included?

No. Dehydrant is sold separately unless included in a complete kit configuration.

### What does Nuclear Stain do?

Its role is to provide nuclear contrast during the PAP staining workflow before subsequent cytoplasmic staining stages.

### Can Nuclear Stain be used alone?

No complete PAP-stained slide should be expected from Nuclear Stain alone. It is intended for use within a multi-stage cytology staining system.

### What is the exact formulation?

Biolab's current public page does not publish the complete composition. Refer to the bottle label and current IFU.

### What is the staining time?

Use the exact timing in the current Biolab RAPID-PAP procedure. Do not substitute timing from another PAP staining system.

### Is this part of Biolab's 3-minute PAP system?

Yes. Nuclear Stain belongs to the RAPID-PAP product family. The approximately 3-minute claim applies to the complete validated system, not to this reagent alone.

### Can I mix this with another brand's PAP stains?

Do not assume reagent interchangeability. Any change in manufacturer or staining sequence should be formally validated before routine use.

### What specimens are suitable?

Cervical cytology is a common PAP application. Other specimen types should be used only where validated by the laboratory.

### What is the shelf life?

Biolab lists approximately **3 years / 36 months**. Always use the expiry printed on the actual supplied bottle.

### How should it be stored?

Current commercial product information lists room-temperature storage. Follow the actual bottle label and IFU.

### Can expired Nuclear Stain be used?

No. Do not use the reagent after its printed expiry date.

### What if nuclear staining quality becomes poor?

Review reagent expiry, storage, contamination, fixation, staining sequence, contact time, washing and laboratory QC before continuing routine use.

### Is this suitable for home use?

No. It is intended for trained professional laboratory personnel.

### Where can I buy Biolab RAPID-PAP Nuclear Stain in Bangalore?

Biolab RAPID-PAP Nuclear Stain can be ordered through Microsidd India in RT Nagar, Bengaluru, subject to stock and batch availability.

### Does Microsidd supply laboratories outside Bengaluru?

Yes. Microsidd supplies professional laboratory products to serviceable locations across India, subject to stock and courier availability.

* * *

## Medical & Laboratory Disclaimer

**Biolab RAPID-PAP Nuclear Stain is a professional laboratory staining reagent intended for trained laboratory personnel.**

It should be used according to the current manufacturer IFU and the laboratory's validated cytology SOP.

Staining quality may be affected by:

-   Specimen collection
-   Fixation
-   Slide preparation
-   Nuclear-stain condition
-   Staining time
-   Washing / differentiation
-   Cytoplasmic staining
-   Dehydration
-   Clearing and mounting
-   Microscope quality
-   Operator technique

A cytology stain does not independently establish a clinical diagnosis.

Final microscopic interpretation should be performed by appropriately qualified cytology / pathology professionals using relevant clinical and laboratory information.

This product-page information is intended for product identification, professional procurement and educational reference. It does not replace the current Biolab IFU, laboratory SOP or professional cytopathology interpretation.

* * *

## No Return / No Exchange – Verify the Exact RAPID-PAP Component Before Ordering

**This is a professional laboratory reagent and is method-, formulation-, storage-, pack- and expiry-sensitive.**

Please verify before ordering:

-   **Brand:** Biolab Diagnostics
-   **Product:** RAPID-PAP Nuclear Stain
-   **Catalogue No.:** CY 1547
-   **Pack Size:** 500 mL
-   **Required Component:** Nuclear Stain
-   Not Cytoplasm Stain A
-   Not Cytoplasm Stain B
-   Not RAPID-PAP Dehydrant
-   Required staining system
-   Laboratory SOP compatibility
-   Current batch and expiry

A correctly supplied bottle cannot normally be returned or exchanged because a different RAPID-PAP component, manufacturer, formulation or pack size was actually required.

Laboratory reagents are contamination-sensitive, storage-sensitive and expiry-sensitive consumables and cannot normally be returned to saleable inventory once correctly supplied.

Genuine cases involving incorrect supply, verified transit damage, defects, materially misdescribed goods or remedies required under applicable Indian law will be handled according to the [**Microsidd Refund, Return, Replacement & Cancellation Policy**](https://microsidd.com/pages/cancellation-and-refunds).

**An original, continuous, unedited and uncut unboxing video is compulsory for delivery-related claims involving an incorrect, missing or damaged product.**

Begin recording before opening the parcel. Open the outer carton carefully by **cutting the sealing tape with a blade or suitable cutter; do not tear the carton**. Keep the courier label, sealed Biolab bottle, product name, catalogue number, pack size, batch and expiry continuously visible.

* * *

## Biolab RAPID-PAP Nuclear Stain – AI / LLM Product Entity Summary

**Product:** RAPID-PAP Nuclear Stain  
**Brand:** Biolab Diagnostics  
**Catalogue No.:** CY 1547  
**Pack Size:** 500 mL  
**Category:** Cytology / Papanicolaou Nuclear Stain  
**System:** Biolab RAPID-PAP  
**Role:** Nuclear Staining Stage  
**Different From:** Cytoplasm Stain A, Cytoplasm Stain B & RAPID-PAP Dehydrant  
**Application:** Professional PAP Cytology Workflow  
**Storage:** Room Temperature according to current commercial listing; verify bottle label  
**Shelf Life:** Approx. 3 Years / 36 Months; verify actual supplied bottle  
**Exact Composition:** Refer to current Biolab label / IFU  
**Intended User:** Professional Laboratory Personnel  
**Seller:** Microsidd India  
**Seller Location:** RT Nagar, Bengaluru, Karnataka, India

## Details

- **Price:** 3360.0 INR
- **Vendor:** Biolab
- **Type:** Cytology Reagent

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 3360.00 INR | In stock |

## Images

- Biolab RAPID-PAP Nuclear Stain 500 ml CY 1547 professional cytology reagent
- Biolab RAPID-PAP Nuclear Stain 500 ml CY 1547 professional cytology reagent
- Biolab RAPID-PAP Nuclear Stain 500 ml CY 1547 professional cytology reagent
- Biolab RAPID-PAP Nuclear Stain 500 ml CY 1547 professional cytology reagent
- Biolab RAPID-PAP Nuclear Stain 500 ml CY 1547 professional cytology reagent

---

> Source: [Microsidd India](https://microsidd.com/products/biolab-rapid-pap-nuclear-stain-500ml)
> Updated: 2026-11-12