ChemicalBook > CAS DataBase List > CROCEIN SCARLET 7B

CROCEIN SCARLET 7B

Product Name
CROCEIN SCARLET 7B
CAS No.
6226-76-2
Chemical Name
CROCEIN SCARLET 7B
Synonyms
CI 27165;ACID RED 71;CI NO 27165;ACID ORANGE 12;C.I. ACID RED 71);CROCEIN SCARLET 7B;Croceine Scarlet 7B;C.I.Acid Red 71:C.I.27165;CROCEIN SCARLET 7B C.I. NO. 27165;CROCEIN SCARLET 7B ISO 9001：2015 REACH
CBNumber
CB8105888
Molecular Formula
C24H18N4Na2O7S2
Formula Weight
584.53
MOL File
6226-76-2.mol
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CROCEIN SCARLET 7B Property

Melting point:
181-188℃
form 
Powder
Colour Index 
27165
Water Solubility 
Soluble in water
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Safety

Safety Statements 
22-24/25
WGK Germany 
3
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Hazard and Precautionary Statements (GHS)

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
C8822
Product name
Crocein Scarlet 7B
Packaging
1g
Price
$25.5
Updated
2024/03/01
Sigma-Aldrich
Product number
C8822
Product name
Crocein Scarlet 7B
Packaging
5g
Price
$74.2
Updated
2024/03/01
Alfa Aesar
Product number
J66876
Product name
Crocein Scarlet 7B, >70% dye content
Packaging
1g
Price
$17.6
Updated
2023/06/20
Alfa Aesar
Product number
J66876
Product name
Crocein Scarlet 7B, >70% dye content
Packaging
5g
Price
$47.2
Updated
2023/06/20
Sigma-Aldrich
Product number
C8822
Product name
Crocein Scarlet 7B
Packaging
25g
Price
$258
Updated
2024/03/01
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CROCEIN SCARLET 7B Chemical Properties,Usage,Production

Uses

Crocein Scarlet 7B is used in Crowle’s reagent. The reagent is needed for observing latent fingerprints, particularly bloody prints. Dyes and metabolites.

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

CROCEIN SCARLET 7B Preparation Products And Raw materials

Raw materials

Preparation Products

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CROCEIN SCARLET 7B Suppliers

China 22 Europe 2 Germany 1 India 1 Switzerland 1 United Kingdom 2 United States 9 Global 38
Alfa Chemistry
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1-516-6625404
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1-516-927-0118
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support@alfa-chemistry.com
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United States
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Aladdin Scientific
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+1-+1(833)-552-7181
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sales@aladdinsci.com
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United States Biological
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chemicals@usbio.net
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Riedel-de Haen AG
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Dudley Chemical Corp.
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dudley@dudley-chem.com
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3B Scientific Corporation
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sales@3bsc.com
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United States
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Advance Scientific & Chemical
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sales@advance-scientific.com
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Spectrum Chemicals & Laboratory Products
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sales@spectrumchemical.com
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Pfaltz & Bauer, Inc.
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sales@pfaltzandbauer.com
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6226-76-2, CROCEIN SCARLET 7BRelated Search:

ACID RED 80 1-Naphthalenesulfonic acid, 4-amino-3-[2-(4-nitrophenyl)diazenyl]-, sodium salt (1:1) Solvent Orange 2 O-AMINOAZOTOLUENE O-TOLUIDINE-4-SULFONIC ACID SODIUM SALT Solvent Red 24 CROCEIN SCARLET 7B 2-Aminotoluene-5-sulfonic acid 4'-Aminoazobenzene-4-sulphonic acid ACID RED 151 Solvent Red 23 CROCEIN SCARLET Acid Red 73 Acid Red 18 7-hydroxynaphthalene-1-sulphonic acid Acid Scarlet Red CALCOCID CROCEIN SCARLET MOO BRILLIANT CROCEIN SCARLET 3BA

  • CROCEIN SCARLET 7B
  • CI 27165
  • CI NO 27165
  • ACID RED 71
  • ACID ORANGE 12
  • CROCEIN SCARLET 7B C.I. NO. 27165
  • 1-Naphthalenesulfonic acid, 7-hydroxy-8-2-methyl-4-(2-methyl-4-sulfophenyl)azophenylazo-, disodium salt
  • C.I. ACID RED 71)
  • 7-Hydroxy-8-[[2-methyl-4-[(2-methyl-4-sodiosulfophenyl)azo]phenyl]azo]naphthalene-1-sulfonic acid sodium salt
  • Croceine Scarlet 7B
  • CROCEIN SCARLET 7B ISO 9001：2015 REACH
  • C.I.Acid Red 71:C.I.27165
  • 6226-76-2
  • C24H18N4O7S2Na2