| Product: | Periodic Acid (1% aqueous) | | Code: | HC6405 | | Lot: | 220258 | | Issue Date: | 22/02/2022 | | Expiry Date: | 2024/02 | | Date of Production: | 16/02/2022 | | HC6405 is aqueous solution of periodic acid suitable for use in the demonstration of and distinction between acid and neutral mucins 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: | Feulgen Stain (Schiff) | | Code: | HS265 | | Lot: | 220546 | | Issue Date: | 31/05/2022 | | Expiry Date: | 2025/05 | | Date of Production: | 23/05/2022 | | HS265 is a reagent used to test for aldehydes and ketones and in histochemistry to detect polysaccharides, DNA and proteins. It consists of a solution of pararosaniline hydrochloride that has been decolourised by sulphur dioxide. Aliphatic aldehydes restore the pink immediately, whereas aromatic ketones have no effect on the reagent. Aromatic aldehydes and aliphatic ketones restore the colour slowly. HS265 may also be used in any other technique when Feulgen 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 | | Visual QC check | SOP Manual 6 | Conforms |
| Product: | Haematoxylin Gill 3 | | Code: | HS345 | | Lot: | 220547 | | Issue Date: | 12/07/2022 | | Expiry Date: | 2024/05 | | Date of Production: | 23/05/2022 | | HS345 Haematoxylin Gill 3 is a stabilised acid-alum-haematoxylin solution which is suitable for use as a regressive nuclear stain to demonstrate acidic cell components, or as a counterstain in histology and clinical cytology to differentiate nuclei, cytoplasm and squamous cells under microscopic examination. | | This product has been checked against the current TCS specification for the following test(s): | | | | Result | | Spectrophotometric analysis | SOP 6A.16 | Conforms | | Stain intensity | SOP 6A.0 | Conforms | | Stain colour | SOP 6A.0 | Conforms | | Background | SOP 6A.0 | Conforms | | Absence of precipitate | SOP 6A.0 | Conforms | | Uniform staining | SOP 6A.0 | Conforms |
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TCS Biosciences Ltd 
