Certificate of Analysis
Product Name
ERIOCHROME CYANINE R AR (C.I. No.43820)
CAS Number
3564-18-9
Molecular Formula
C23H15Na3O9S
Catalogue No.
AL00667
Molecular Weight
536.39 g/mol
Batch Number
AL-2026-AL00667
Manufacturing Date
September-2026
Expire Date
September-2031
| Type of Test | Standard | Observed |
|---|---|---|
| Description | Reddish brown powder | Reddish brown powder |
| Absorption maxima (Buffer pH 7.0) | 434 – 440 nm | 435 nm |
| Specific absorptivity (A1%/1cm, 0.02g/l; buffer pH 7.0 calc on dried subs.) | 130 - 200 | 200 |
| Loss on drying (105°C) | <10.0% | 7.2% |
Tested By
Hitesh Kunjathur
Analysed By
Preeti Rane
