| Article No | P-06745 | ||
| CAS No | 143-74-8 | ||
| HSN Code | 29349900 | ||
| Purity | - | ||
| Grade | AR | ||
| Molecular Formula | C19H14O5S | ||
| Molecular Weight | 354.38 | ||
| Shelf Life | 5 years | ||
25 gm
100 gm
| Description | Reddish powder | ||
| Loss on drying (110°C) | Max. 5.0% | ||
| Dye content (By spectrophotometry) | Min 95.0% | ||
| Transition range pH 6.5 - 8.2 | Yellow to reddish violet | ||
| Absorption Max (pH 6.5) λ1 | 430 – 435 nm | ||
| Absorption Max (pH 8.2) λ2 | 557 – 560 nm | ||
| Clarity of solution | Passes ACS test | ||
| Solubility in water | Slightly soluble in water | ||