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Certificate of Analysis

Product:	Elastin Stain Kit - Miller/Van Gieson
Code:	HS237
Lot:	251145
Issue Number:	1
Issue Date:	27/11/2025
Expiry Date:	2027/11
Date of Production:	11/11/2025
Storage:	Store in a cool, dry, well-ventilated place.
HS237 consists of a pack of reagents suitable for use in histological staining procedures to demonstrate elastin fibres in tissue sections.
Notes: Certificate will be updated with additional testing results for HS235 & HS780 when these are available. Check our website for Dyes and Stains certificate updates.

Kit components:

Product:	Potassium Permanganate (A)
Code:	HK024
Lot:	251143
Issue Date:	27/11/2025
Expiry Date:	2027/11
Date of Production:	11/11/2025
HK024 is an acidified aqueous solution of potassium permanganate. It is a component in the Elastin Stain (Miller) Pack HS237 for the demonstration of elastin fibres in tissue sections.
This product has been checked against the current TCS specification for the following test(s):
		Result
Visual QC check	SOP Manual 6	Conforms

Product:	Oxalic Acid Solution (B)
Code:	HK015
Lot:	251144
Issue Date:	27/11/2025
Expiry Date:	2027/11
Date of Production:	11/11/2025
HK015 is an aqueous solution of oxalic acid. It is a component in the Elastin Stain (Miller) Pack HS237 for the demonstration of elastin fibres in tissue sections.
This product has been checked against the current TCS specification for the following test(s):
		Result
Visual QC check	SOP Manual 6	Conforms

Product:	Elastin Stain (Miller)
Code:	HS235
Lot:	251137
Issue Date:	27/11/2025
Expiry Date:	2027/11
Date of Production:	11/11/2025
HS235 is complex alcoholic solution with constituents including Victoria Blue, New Fuchsin, Crystal Violet, Resorcinol and Iron (lll) chloride hexahydrate. It may be used in histological staining procedures to demonstrate elastin fibres in tissue sections.
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:	Van Gieson Stain
Code:	HS780
Lot:	251106
Issue Date:	06/11/2025
Expiry Date:	2028/11
Date of Production:	03/11/2025
HS780 is an aqueous solution of Fuchsin acid (Acid Violet 19) and picric acid which is suitable for the demonstration of collagen in many techniques where Van Gieson stain is specified.
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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