Home > Name List By a > Acid Blue 74

CAS No 860-22-0 , Acid Blue 74

  • Name: Acid Blue 74
  • Synonyms: E 132; Indigo Carmine; Indigo-5,5-disulphonic acid disodium salt; disodium 5,5-indigodisulphonate;Acid Blue 74;C.I. 73015;5,5-Indigodisulfonic acid, disodium salt; Food Blue 1; C.I. 73015; 5,5'-Indigodisulfonic acid disodium salt; Acid Blue 74; disodium 5,5-(2-(1,3-dihydro-3-oxo-2H-indazol-2-ylidene)-1,2-dihydro-3H-indol-3-one)disulphonate; Disodium 5,5'-(2-(1,3-dihydro-3-oxo-2H-indazol-2-ylidene)-1,2-dihydro-3H-indol-3-one)disulphonate;
  • CAS Registry Number:
  • Melting Point: >300°C
  • Density: 1.01 g/mL at 20 °C
  • Refractive index: n20/D 1.335
  • Water Solubility: 1 G/100 ML (25 ºC)
  • Safety Statements: R22
  • Hazard Symbols: Xn: Harmful;
  • HS Code: 32041200
  • EINECS: 212-728-8
  • Molecular Weight: 466.35
  • InChI: InChI=1/C16H10N2O8S2.2Na/c19-15-9-5-7(27(21,22)23)1-3-11(9)17-13(15)14-16(20)10-6-8(28(24,25)26)2-4-12(10)18-14;;/h1-6,17-18H,(H,21,22,23)(H,24,25,26);;/q;2*+1/b14-13+;;
  • Risk Statements: S22;S24/25
  • Molecular Formula: C16H8N2Na2O8S2
  • Molecular Structure:CAS No:860-22-0 Acid Blue 74

Related products

Search by region :

Select to

860-22-0 INDIGO CARMINE (C.I. 73015) FOOD GRADE, C.I. FOOD BLUE 1 FD&C BLUE NO.2, E132, FOOD BLUE NO. 2

  • Hong kong Advanced Technology & Industrial Co., Ltd. [Manufacturer]
  • Tel: (852) 2390 2293/ (852) 2394 5546
  • Fax: (852) 2789 8314
  • Address: Unit B, 1/F., Cheong Shing Bldg.,
    17 Walnut St., Tai Kok Tsui, Kln,
    Hong Kong null,nullHong kong
Contact Supplier

860-22-0 INDIGO CARMINE

  • Germany ABCR GmbH & Co KG [Manufacturer]
  • Tel: +49 721 95061-0
  • Fax: +49 721 95061-80
  • Address: Im Schlehert 10
    76187 Karlsruhe
    Germany null,nullGermany
Contact Supplier

860-22-0 ACID BLUE 74

  • E132; l-blau2; murabba; 1311blue; CI 73015; Greell S;12070blue; acidbluew; c.i.75781; indigotini; acid azul 74; acid blu 74
  • India Khushi Dyechem [Manufacturer, Trading Company]
  • Tel: 91-98-25022401
  • Address: 405 Anand Mangal-II, C G Road Ahmedabad,GujaratIndia
Contact Supplier

860-22-0 Indigo Carmine

  • China Taiyuan RHF CO., ltd. [Manufacturers]
  • Tel: 0351-7436719
  • Fax: +86-351-7436719
  • Address: Shuangta South Alley 46,2-1, YingZe Area,Taiyuan, ShanXi null,ShanXiChina
Contact Supplier

860-22-0 INDIGOCARMINE

  • Germany CHEMOS GmbH [Manufacturer]
  • Tel: 0049 9402/9336 0
  • Fax: 0049 9402/9336 13
  • Address: CHEMOS GmbH
    Werner-von-Siemensstr. 3
    93128 Regenstauf
    Germany null,nullGermany
Contact Supplier

860-22-0 FD&C Blue #2

  • United States Parchem Trading [Manufacturer]
  • Tel: 914.654.6800
  • Fax: 914.654.6899
  • Address: Parchem Trading Ltd.
    415 Huguenot Street
    New Rochelle, NY 10801 null,nullUnited States
Contact Supplier

860-22-0 Indigo carmine

  • China Shanghai Experiment Reagent Co.,LTD. [Manufacturers]
  • Tel: 0086-21-56558317 56553837
  • Fax: +86-21-56553837
  • Address: 10-603, No.555 Luding Road (No.1000 North Zhongshan Road),Shanghai Shanghai,ShanghaiChina
Contact Supplier

860-22-0 Indigo Carmine

  • India Nile Chemicals [Manufacturers]
  • Tel: +91-(22)-66313162, 23454828
  • Fax: +91-(22)-23454828
  • Address: 202, Matruchhaya, 378/80 Narshi Natha Street, Mumbai, Maharashtra 400 009, Mumbai,MumbaiIndia
Contact Supplier

860-22-0 Acid Blue 74

  • China Kelco Chemicals Co.,Ltd. null
  • Fax: +86-21-62733549
  • Address: Rm 601, Tianshan Manshion, No. 30, Tian Shan Road,Shanghai, 200336, China. null,nullChina
Contact Supplier

860-22-0 INDIGO CARMINE 95%

  • United States Advanced Synthesis Technologies [Manufacturer]
  • Tel: 619-423-7821
  • Fax: 619-423-7793
  • Address: Advanced Synthesis
    P.O. Box 437920
    San Ysidro, CA 92173 null,nullUnited States
Contact Supplier

Select to

1/3
1 2 3 Next
References of Acid Blue 74
Title: Indigo Carmine
CAS Registry Number: 860-22-0
CAS Name: 2-(1,3-Dihydro-3-oxo-5-sulfo-2H-indol-2-ylidene)-2,3-dihydro-3-oxo-1H-indole-5-sulfonic acid disodium salt
Synonyms: 3,3￠-dioxo-[D2,2￠-biindoline]-5,5￠-disulfonic acid disodium salt; disodium 5,5￠-indigotin disulfonate; sodium indigotin disulfonate; soluble indigo blue; indigotine; Acid Blue 74; C.I. Acid Blue 74; C.I. Food Blue 1; FD & C Blue No. 2; C.I. 73015
Molecular Formula: C16H8N2Na2O8S2
Molecular Weight: 466.35
Percent Composition: C 41.21%, H 1.73%, N 6.01%, Na 9.86%, O 27.45%, S 13.75%
Literature References: Synthesis and structure determination: Vorlander, Schubart, Ber. 34, 1860 (1901). Prepn and properties: Matthews, Color Trade J. 6, 96 (1920). See also Colour Index vol. 4 (3rd ed., 1971) p 4597.
Properties: Dark-blue powder with coppery luster. Sensitive to light. Its solns have a blue or bluish-purple color. One gram dissolves in about 100 ml water at 25°. Slightly sol in alcohol. Practically insol in most other organic solvents. It is also marketed as a paste with water, the dye contents varying according to specification or requirements of the user. It almost always contains sodium chloride or sulfate used for "salting" it out. Indigo carmine is very sensitive to oxidizing agents. The color is readily discharged by nitric acid, chlorates, etc. The color of the aq soln fades on standing.
Use: Colorant for nylon, surgical sutures, foods and ingested drugs. As a reagent for functional kidney tests, for detection of nitrates, chlorates and in testing milk.