Home > Name List By i > Indigo

CAS No 482-89-3 , Indigo

  • Name: Indigo
  • Synonyms: 2-(1,3-Dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro-3H-indol-3-one; Vat Blue 1; 2,2'-Bis(2,3-dihydro-3-oxoindolylidene); C.I. 73000; Indigo blue;Indigo;
  • CAS Registry Number:
  • Transport: 50kgs
  • Melting Point: 390-392 ºC (DEC.)
  • Flash Point: 158.2°C
  • Boiling Point: 400.4°Cat760mmHg
  • Density: 1.417g/cm3
  • Refractive index: 1.709
  • Water Solubility: <0.1 G/100 ML
  • Safety Statements: R36/37/38
  • Hazard Symbols: Xi: Irritant;
  • Flash Point: 158.2°C
  • EINECS: 207-586-9
  • Molecular Weight: 262.27
  • InChI: InChI=1/C16H10N2O2/c19-15-9-5-1-3-7-11(9)17-13(15)14-16(20)10-6-2-4-8-12(10)18-14/h1-8,17-18H/b14-13+
  • Risk Statements: S26;S36
  • Molecular Formula: C16H10N2O2
  • Molecular Structure:CAS No:482-89-3 Indigo

Related products

Search by region :

Select to

482-89-3 Vat Blue 1

Contact Supplier

482-89-3 Indigo

  • China AFINE CHEMICALS LIMITED [Manufacturer]
  • Tel: +86-571-85134551/ +86-571-85232125
  • Fax: +86-571-85134895
  • Address: AFINE CHEMICALS LIMITED
    7-C-601, Xi Gang Xin Jie,
    Xihu Industrial Park,
    No. 206 Zhen Hua Road,Hangzhou
    310030, Zhejiang, China null,nullChina
Contact Supplier

482-89-3 Indigo Blue

  • United States Aceto Corporation [Importer/Exporter]
  • Tel: +1-(516)-627-6000
  • Fax: +1-(516)-627-6093
  • Address: One Hallow Lane, Lake Success, New York 11042-1215, null,nullUnited States
Contact Supplier

482-89-3 INDIGO

  • China ORICHEM INTERNATIONAL LTD. [Manufacturer, Trading Company]
  • Tel: 86-0571-85270505
  • Fax: 86-0571-85270303
  • Address: FLAT E,16/F,1 HUAZHE PLAZA,HANGZHOU, null,nullChina
Contact Supplier

482-89-3 VAT BLUE 1

  • China Dragon Chemical Group Co.,China null
  • Fax: +86-571-88391332 49-211-550203-10
  • Address: 10/Fl., Jinjiang Building, 111 South Hushu Rd., Hangzhou, China null,nullChina
Contact Supplier

482-89-3 Vat Blue 1

  • 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

482-89-3 VAT BLUE 1

  • China Qingdao Chinaoil Co., Ltd null
  • Fax: +86-532-85713888 85723888
  • Address: 22/F,Golden Light Tower,No.56, Xianggang Zhong Road, Qingdao 266071, China null,nullChina
Contact Supplier

482-89-3 VAT BLUE 1

  • China Dintech Chemical Co.,Ltd. null
  • Fax: +86-510-82720323
  • Address: 20-D,Huaguang Mansion,333 Zhong Shan Road,Wuxi,China. null,nullChina
Contact Supplier

482-89-3 Indigo

  • China Winchem Industrial Co. Ltd. [Manufacturer, Trading Company]
  • Tel: 86-574-83851061 86-574-87083208
  • Fax: 86-574-87083209
  • Address: Room 905, No.3 Building,East Business Center, 456 Xingning Road, Ningbo City,China null,nullChina
Contact Supplier

482-89-3 Indigo

Contact Supplier

Select to

2/6
Previous 1 2 3 4 5 6 Next
References of Indigo
Title: Indigo
CAS Registry Number: 482-89-3
CAS Name: 2-(1,3-Dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro-3H-indol-3-one
Synonyms: [D2,2￠-biindoline]-3,3￠-dione; D2,2￠-bipseudoindoxyl; indigotin; indigo blue; D & C Blue No. 6; C.I. Pigment Blue 66; C.I. Vat Blue 1; C.I. 73000
Molecular Formula: C16H10N2O2
Molecular Weight: 262.26
Percent Composition: C 73.28%, H 3.84%, N 10.68%, O 12.20%
Literature References: Probably the oldest known coloring matter. Originally obtained from various species of Indigofera, Leguminosae, indigenous to Bengal, Java, Guatemala, in which it occurs as a glucoside. First synthesis: Baeyer, Ber. 11, 1296 (1878); 12, 456 (1879). First commercial process: Heumann, Ber. 23, 3043, 3431 (1890). Newer prepns: Harley-Mason, J. Chem. Soc. 1950, 2907; Ziegler, Kappe, Monatsh. Chem. 96, 889 (1965); J. Gosteli, Helv. Chim. Acta 60, 1980 (1977). Indigo occurs in cis and trans forms, in solid state it is in the trans form: Posner, Ber. 56, 31 (1923); 57, 1313 (1924); 59, 1799 (1926). Reviews on indigo and indigoid dyes: Lubs, The Chemistry of Synthetic Dyes, ACS Monograph Series no. 127 (Reinhold, New York, 1955) pp 551-576; Schweizer, Künstliche Organische Farbstoffe und ihre Zwischenprodukte (Springer Verlag, 1964) pp 320-334; Colour Index vol. 4 (3rd ed., 1971) p 4595.
Properties: Dark-blue powder with coppery luster. Sublimes at about 300°; dec 390°. Practically insol in water, alcohol, ether, and dil acids. Dissolves in nonpolar solvents with red and in polar solvents with blue color. With fuming H2SO4 it forms a sol sulfonic acid.
Use: As textile dye. In sutures.