Certificate of Analysis
Product Name
EOSINE YELLOW (WATER SOLUBLE) For Microscopy
CAS Number
17372-87-1
Molecular Formula
C20H6Br4Na2O5
Catalogue No.
AL00662
Molecular Weight
691.85 g/mol
Batch Number
AL-2026-AL00662
Manufacturing Date
September-2026
Expire Date
September-2031
| Type of Test | Standard | Observed |
|---|---|---|
| Description | Brownish red fine powder | Brownish red fine powder |
| Assay (spectrophotometry) | Min. 85% | 86.5% |
| Absorption maxima in water | 515 – 518 nm | 516 nm |
| Spec. Absorptivity A1%1cm (?max, 0.005g/l; in water) | 1200 - 1400 | 1222 |
| Loss on drying (110°C) | <8.0% | Passes test |
| Suitability for microscopy | Passes test |
Tested By
Hitesh Kunjathur
Analysed By
Preeti Rane
