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Certificate of Analysis

Product:	MSB Stain Pack - Fibrin
Code:	HS443
Lot:	251125
Issue Number:	1
Issue Date:	13/11/2025
Expiry Date:	2027/11
Date of Production:	06/11/2025
Storage:	Store in a cool, dry, well-ventilated place.
HS443 consists of a pack of reagents suitable for the histological demonstration of and distinction between fibrin, muscle and collagen fibres in tissue samples.
Notes: Certificate will be updated with additional testing results for HS315 when these are available. Check our website for Dyes and Stains certificate updates.

Kit components:

Product:	Haemalum Mayer
Code:	HS315
Lot:	251033
Issue Date:	30/10/2025
Expiry Date:	2028/10
Date of Production:	15/10/2025
HS315 is a trivalent alum metal-haematein complex staining solution. Typically this is used as a progressive nuclear stain or as a counterstain in haematoxylin-eosin staining (H&E) in histology and clinical cytology to differentiate nuclei, cytoplasma and squamous cells under microscopic examination.
Notes: Certificate will be updated with additional testing results when these are available. Check our website for Dyes and Stains certificate updates.
This product has been checked against the current TCS specification for the following test(s):
		Result
Spectrophotometric analysis	SOP 6A.16	Conforms

Product:	Martius Yellow Alcoholic (B)
Code:	HK014
Lot:	251121
Issue Date:	13/11/2025
Expiry Date:	2027/11
Date of Production:	06/11/2025
HK014 is an aqueous solution of martius yellow and phosphotungstic acid hydrate. It is a component in the MSB Stain Pack HS443 for use in the demonstration of and distinction between fibrin, muscle and collagen fibres in tissue samples.
This product has been checked against the current TCS specification for the following test(s):
		Result
Visual QC check	SOP Manual 6	Conforms

Product:	Brilliant Crystal Scarlet 6R 1% (C)
Code:	HK005
Lot:	251122
Issue Date:	13/11/2025
Expiry Date:	2027/11
Date of Production:	06/11/2025
HK005 is an acidified aqueous solution of crystal ponceau. It is a component in the MSB Stain Pack - fibrin (HS443) for use in the demonstration of and distinction between fibrin, muscle and collagen fibres in tissue samples.
This product has been checked against the current TCS specification for the following test(s):
		Result
Visual QC check	SOP Manual 6	Conforms

Product:	Phosphotungstic Acid 1% (D)
Code:	HK019
Lot:	251123
Issue Date:	13/11/2025
Expiry Date:	2027/11
Date of Production:	06/11/2025
HK019 is an aqueous solution of phosphotungstic acid. It is a component in the MSB Stain Pack HS443 for use in the demonstration of and distinction between fibrin, muscle and collagen fibres in tissue samples.
This product has been checked against the current TCS specification for the following test(s):
		Result
Visual QC check	SOP Manual 6	Conforms

Product:	Soluble (Aniline) Blue (E)
Code:	HK028
Lot:	251124
Issue Date:	13/11/2025
Expiry Date:	2027/11
Date of Production:	06/11/2025
HK028 is an acidified aqueous solution of methyl blue. It is a component in the MSB Stain Pack HS443 for use in the demonstration of and distinction between fibrin, muscle and collagen fibres in tissue samples.
This product has been checked against the current TCS specification for the following test(s):
		Result
Visual QC check	SOP Manual 6	Conforms

For professional use only.

Approved by QC.

TCS Biosciences Ltd - Quality Control Department TCS Biosciences Ltd
Botolph Claydon
Buckingham
MK18 2LR
United Kingdom

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