CERTIFICATE OF ANALYSIS
Product Name ROSE BENGAL AR CAS Number 632-69-9
Molecular Formula C 20 H 2 O 5 Cl 4 I 4 Na 2 Catalogue No. AL3924
Molecular Weight 1017.65 Batch Number
Manufacturing Date December-2020 Expire Date November-2025

TYPE OF TEST

STANDARD

OBSERVED
Description
Absorption maximum  max (0.001%; in water + 1ml 1% Na2CO3 Solution)
Absorptivity (A1%/1cm in water + 1ml 1% Na2CO3 Solution at  max)
Loss on drying (110°C)
Dark red powder
544 - 550nm
Min. 780
Max. 10%
Dark red powder
547 nm
796
6.1%
Result: The above product complies with AR grade

Tested By
Hitesh Kunjathur

Analysed By
Preeti Rane