CERTIFICATE OF ANALYSIS
Product Name b-NAPHTHOL VIOLET AR CAS Number 7143-21-7
Molecular Formula C 16 H 9 N 3 O 9 S 2 Na 2 Catalogue No. AL3173
Molecular Weight 497.37 Batch Number
Manufacturing Date December-2020 Expire Date November-2025

TYPE OF TEST

STANDARD

OBSERVED
Description
pH 10.0 – 12.0
Brownish red powder
Brown to Violet
Brownish red powder
Brown to Violet
Result: The above product complies with AR grade

Tested By
Hitesh Kunjathur

Analysed By
Preeti Rane