Certificate of Analysis
Product Name
INDIGO CARMINE AR
CAS Number
860-22-0
Molecular Formula
C16H8N2Na2O8S2
Catalogue No.
AL00823
Molecular Weight
466.35 g/mol
Batch Number
AL-2026-AL00823
Manufacturing Date
September-2026
Expire Date
September-2031
| Type of Test | Standard | Observed |
|---|---|---|
| Description | Dark blue-violet powder having a metallic luster of copper. | Dark blue-violet powder having a metallic luster of copper. |
| Absorption maxima in water | 608 – 612 nm | 610 nm |
| Absorptivity (A 1%/ 1cm: @ ? max; in water; on dried substance) | 380 - 475 | 418 |
| Loss on drying (105°C) | <6.0% | 3.78% |
| Suitability for microscopy | Passes test | Passes test |
Tested By
Hitesh Kunjathur
Analysed By
Preeti Rane
