CERTIFICATE OF ANALYSIS

Product Name	EOSIN YELLOW For Microscopy	CAS Number	17372-87-1
Molecular Formula	C 20 H 6 Br 4 Na 2 O 5	Catalogue No.	AL1995
Molecular Weight	691.88	Batch Number
Manufacturing Date	December-2020	Expire Date	November-2025

TYPE OF TEST	STANDARD	OBSERVED
Description Assay (spectrophotometry) Absorption maxima in water Spec. Absorptivity A1%1cm (?max, 0.005g/l; in water) Loss on drying (110°C) Suitability for microscopy	Brownish red fine powder Min. 85% 515 – 518 nm 1200 - 1400 <8.0% Passes test	Brownish red fine powder 86.5% 516 nm 1222 Passes test

Result: The above product complies with LR grade

Tested By
Hitesh Kunjathur

Analysed By
Preeti Rane