C8822

Crocein Scarlet 7B

Powder

• Synonym(s): Acid Red 71
• Linear Formula: C₂₄H₁₈N₄O₇S₂Na₂
• CAS Number: 6226-76-2
• Molecular Weight: 584.53
• Colour Index Number: 27165
• MDL number: MFCD00056588
• UNSPSC Code: 12171500
• PubChem Substance ID: 24893109
• NACRES: NA.47

Properties

• product name: Crocein Scarlet 7B,
• form: powder
• composition: Dye content, ~65-85%
• color: red to brown
• solubility: H₂O: 1 mg/mL
• application(s): diagnostic assay manufacturing; hematology; histology
• storage temp.: room temp
• SMILES string: [Na].Cc1cc(ccc1\N=N\c2c(O)ccc3cccc(c23)S(O)(=O)=O)\N=N\c4ccc(cc4C)S(O)(=O)=O
• InChI: 1S/C24H20N4O7S2.Na.H/c1-14-12-17(25-26-20-10-8-18(13-15(20)2)36(30,31)32)7-9-19(14)27-28-24-21(29)11-6-16-4-3-5-22(23(16)24)37(33,34)35;;/h3-13,29H,1-2H3,(H,30,31,32)(H,33,34,35);;/b26-25+,28-27+;;
• InChI key: HJEUGBJDHUTXMF-NPYGFOBASA-N

Description

Biochem/physiol Actions

Crocein Scarlet 7B (acid red 71) is used in Crowle′s reagent. The reagent is needed for observing latent fingerprints, particularly bloody prints.

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves