Certificate of Analysis
Product Name
WRIGHT’S stain
CAS Number
68988-92-1
Molecular Formula
C20H20N2O5S
Catalogue No.
AL01576
Molecular Weight
396.45 g/mol
Batch Number
AL-2026-AL01576
Manufacturing Date
September-2026
Expire Date
September-2031
| Type of Test | Standard | Observed |
|---|---|---|
| Description | Greenish black/blue crystalline powder | Greenish black/blue crystalline powder |
| Absorption maxima in methanol (1) | 640 - 648 nm | 642 nm |
| Absorption maxima in methanol (2) | 522 - 525 nm | 524 nm |
| Sp. Absorptivity at (1) | >1100 | >1100 |
| Sp. Absorptivity at (2) | >650 | 709 |
| Microbiological test | Passes test | Passes test |
| Loss on drying 110°C | <10% | 7.6% |
Tested By
Hitesh Kunjathur
Analysed By
Preeti Rane
