ChemicalBook--->CAS DataBase List--->28899-75-4

28899-75-4

28899-75-4 Structure

28899-75-4 Structure
IdentificationBack Directory
[Name]

7-chloro-1H-indole-2-carboxylic acid
[CAS]

28899-75-4
[Synonyms]

7-Chloroindole-2-carboxylic acid
1H-Indole-2-carboxylic acid, 7-chloro-
7-chloro-1H-indole-2-carboxylic acid(SALTDATA: FREE)
[EINECS(EC#)]

249-296-5
[Molecular Formula]

C9H6ClNO2
[MDL Number]

MFCD02664428
[MOL File]

28899-75-4.mol
[Molecular Weight]

195.6
Chemical PropertiesBack Directory
[Boiling point ]

449.7±25.0 °C(Predicted)
[density ]

1.548±0.06 g/cm3(Predicted)
[storage temp. ]

Keep in dark place,Inert atmosphere,2-8°C
[form ]

solid
[pka]

4.23±0.30(Predicted)
[Appearance]

White to off-white Solid
[InChI]

InChI=1S/C9H6ClNO2/c10-6-3-1-2-5-4-7(9(12)13)11-8(5)6/h1-4,11H,(H,12,13)
[InChIKey]

NVKAHBFPKVINGE-UHFFFAOYSA-N
[SMILES]

N1C2=C(C=CC=C2Cl)C=C1C(O)=O
Safety DataBack Directory
[Symbol(GHS) ]

Exclamation Mark (GHS07)
GHS07
[Signal word ]

Warning
[Hazard statements ]

H315-H319-H335-H302
[Precautionary statements ]

P264-P270-P301+P312-P330-P501-P264-P280-P302+P352-P321-P332+P313-P362-P264-P280-P305+P351+P338-P337+P313P
[WGK Germany ]

WGK 3
[HazardClass ]

IRRITANT
[HS Code ]

2933998090
[Storage Class]

11 - Combustible Solids
Hazard InformationBack Directory
[Uses]

7-chloro-1H-indole-2-carboxylic acid is an important pharmaceutical intermediate compound used in the preparation of protease inhibitors.
[Synthesis]

A mixture of 111.5 g of 7-chloroindole-2-carboxylate in 31.25 g of 96percent sodium hydroxide in 183 ml of methanol and 183 ml of water were heated under reflux for 1 hour, cooled to 45 ° C, and 10 percent hydrochloric acid was added dropwise to a pH of 3 to 4. The mixture was sufficiently cooled to obtain 89.7 g of product as an off-white 7-chloro-1H-indole-2-carboxylic acid.
[References]

[1] Journal of Medicinal Chemistry, 2003, vol. 46, # 19, p. 3957 - 3960
[2] Patent: CN104402795, 2017, B. Location in patent: Paragraph 0060; 0063
[3] Journal of the Chemical Society, 1955, p. 3499,3502
[4] Patent: US2003/207893, 2003, A1
[5] Patent: WO2004/22061, 2004, A1. Location in patent: Page/Page column 56-57
Spectrum DetailBack Directory
[Spectrum Detail]

7-chloro-1H-indole-2-carboxylic acid(28899-75-4)1HNMR
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