CERTIFICATE OF ANALYSIS
Product Name THIONIN (ACETATE) For Microscopy CAS Number 78338-22-4
Molecular Formula C14H13N3O2S Catalogue No. AL4537
Molecular Weight 287.34 Batch Number
Manufacturing Date December-2020 Expire Date November-2025

TYPE OF TEST

STANDARD

OBSERVED
Description
Dye Content
Absorption maxima in water
Absorptivity A1% / 1 cm in water
Loss on drying(at 110 0C)
Black or blackish green color powder
85% min
598 – 605nm
1740 - 2040
7.0% max
Blackish green color powder.
92.5 %
600.10 nm
1752.08
4.08%
Result: The above product complies with LR grade

Tested By
Hitesh Kunjathur

Analysed By
Preeti Rane