Certificate of Analysis
Product Name
BIEBRICH SCARLET (W.S.) (C.I. No.26905)
CAS Number
4196-99-0
Molecular Formula
C22H14N4Na2O7S2
Catalogue No.
AL00266
Molecular Weight
556.49 g/mol
Batch Number
AL-2026-AL00266
Manufacturing Date
September-2026
Expire Date
September-2031
| Type of Test | Standard | Observed |
|---|---|---|
| Description | Dark brown powder | Dark brown powder |
| Dye content | Min. 70% | 72.5% |
| Absorption maxima (in water) | 506 - 510nm | 508 nm |
| Spec. Absorptivity A1%/1cm( lambda max 0.001g/l; water, on dried subs.) | 530 - 740 | 720 |
| Loss on drying (110°C) | <15% | 6.41% |
Tested By
Hitesh Kunjathur
Analysed By
Preeti Rane
