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Certificate of Analysis

Product:	Cold ZN - Kinyoun Stain Pack
Code:	HS805-MG
Lot:	251203
Issue Number:	1
Issue Date:	18/12/2025
Expiry Date:	2027/01
Date of Production:	02/12/2025
Storage:	Store in a cool, dry, well-ventilated place.
HS805-MG consists of a pack of reagents suitable for carrying out the Cold Ziehl-Neelsen stain for acid-fast bacilli with Malachite Green (ZN) as counterstain.
Notes: Certificate will be updated with additional testing results for HS180, HS787 & HS435 when these are available. Check our website for Dyes and Stains certificate updates.

Kit components:

Product:	Carbol Fuchsin (Kinyoun)
Code:	HS180
Lot:	250449
Issue Date:	01/05/2025
Expiry Date:	2028/04
Date of Production:	23/04/2025
HS180 is an aqueous/alcoholic solution of Basic Fuchsin, phenol and ethanol which is suitable for use as a counterstain in the 'Cold ZN' Kinyoun Staining technique for acid fast bacilli.
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:	ZN Decolouriser
Code:	HS787
Lot:	250302
Issue Date:	06/03/2025
Expiry Date:	2028/03
Date of Production:	03/03/2025
HS787 is an acidified alcoholic solution which is suitable for use as a decolouriser in the standard and cold ZN staining techniques for acid fast bacilli.
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
Visual QC check	SOP Manual 6	Conforms

Product:	Malachite Green (ZN)
Code:	HS435
Lot:	250156
Issue Date:	30/01/2025
Expiry Date:	2027/01
Date of Production:	29/01/2025
HS435 is an aqueous solution of Malachite Green which is suitable for use as a counterstain in the Ziehl-Neelsen and Kinyoun stain techniques for acid-fast bacilli.
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

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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