CROCEIN ORANGE G Chemical Properties

storage temp. 

Amber Vial, -20°C Freezer, Under inert atmosphere

solubility 

DMSO (Slightly), Water (Slightly)

Colour Index 

15970

form 

Powder

color 

Bright orange to red

EPA Substance Registry System

2-Naphthalenesulfonic acid, 6-hydroxy-5-(phenylazo)-, monosodium salt (1934-20-9)

Safety Information

Safety Statements 

22-24/25

WGK Germany 

3

RTECS 

QK2430000

HS Code 

3204.90.0000

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS

CROCEIN ORANGE G Usage And Synthesis

Chemical Properties

orange-red powder

Uses

A labeled form of Crocein Orange G (C794955), also known as Acid Orange 12, which is a water-soluble synthetic dye.

Preparation

aniline diazo, and 6-Hydroxynaphthalene-2-sulfonic acid coupling.

Properties and Applications

bright orange. Soluble in water for gold orange, slightly soluble in ethanol for gold orange, slightly soluble in acetone and soluble fiber element, insoluble in other organic solvents. The strong sulfuric acid for gold in orange, diluted colour and lustre is unchanged; In nitric acid by brown in a red. Its water solution to join strong hydrochloric acid for gold orange; Add 10% of sodium carbonate solution color unchanged; Add thick sodium hydroxide solution for palm orange. Used for wool, silk, cotton, vinegar fiber etc of fiber dyeing and printing directly. Also used for paper, leather and biological dyeing, also used as indicator.

CROCEIN ORANGE G(1934-20-9)Related Product Information

• Acid Orange 10
• sesaminol
• Sesamol
• Sesamin
• DIRECT FAST RED 3B
• BETA-NAPHTHOL VIOLET
• THORIN
• BORDEAUX RED
• disodium 7-hydroxy-8-[[4'-[[4-[[(p-tolyl)sulphonyl]oxy]phenyl]azo][1,1'-biphenyl]-4-yl]azo]naphthalene-1,3-disulphonate
• Acid Red 18
• HYDROXYNAPHTHOL BLUE
• ACID RED 13
• ACID RED 26
• ALLURA RED AC
• Food Yellow 3:1
• DIRECT SCARLET B
• CROCEIN ORANGE G
• PONCEAU 6R