CROCEIN SCARLET 7B
Synonym(s):Acid Red 71
- CAS NO.：6226-76-2
- Empirical Formula: C24H18N4Na2O7S2
- Molecular Weight: 584.53
- MDL number: MFCD00056588
- EINECS: 612-981-8
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:27:05
What is CROCEIN SCARLET 7B?
The Uses of CROCEIN SCARLET 7B
Crocein Scarlet 7B is used in Crowle’s reagent. The reagent is needed for observing latent fingerprints, particularly bloody prints. Dyes and metabolites.
What are the applications of Application
Crocein Scarlet 7B is used in hematology and histology
Preparation
2′,3-Dimethyl-4-amino-4′-sulfoazobenzene?diazo, and 7-Hydroxynaphthalene-1-sulfonic acid coupling.
Properties and Applications
red. Soluble in water for product red, soluble in ethanol for red orange. The strong sulfuric acid for blue, pink is diluted. In water solution to join strong hydrochloric acid for product red; Add thick sodium hydroxide solution for shallow red sauce.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 5-6 | 2-3 | 2-3 | 2 | 1 | 2-3 | ||
Properties of CROCEIN SCARLET 7B
| Melting point: | 181-188℃ |
| form | Powder |
| Colour Index | 27165 |
| Water Solubility | Soluble in water |
Safety information for CROCEIN SCARLET 7B
Computed Descriptors for CROCEIN SCARLET 7B
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