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Home > Encyclopedia > 5-Chloro-1H-indole-2-carboxylic acid

5-Chloro-1H-indole-2-carboxylic acid

5-Chloro-1H-indole-2-carboxylic acid structure

5-Chloro-1H-indole-2-carboxylic acid 

structure
  • CAS No:

    10517-21-2

  • Formula:

    C9H6ClNO2

  • Chemical Name:

    5-Chloro-1H-indole-2-carboxylic acid

  • Synonyms:

    1H-Indole-2-carboxylic acid,5-chloro-;Indole-2-carboxylic acid,5-chloro-;5-Chloro-1H-indole-2-carboxylic acid;5-Chloroindole-2-carboxylic acid;NSC 75651;2-Carboxy-5-chloroindole

  • Categories:

    Pharmaceutical Intermediates  >  Bulk Drug Intermediates

Description

light pink to beige or light brown fine


5-chloro-1H-indole-2-carboxylic acid is an indolyl carboxylic acid.

5-Chloro-1H-indole-2-carboxylic acid Basic Attributes

195.6

195.60

153229

234-050-1

75651

DTXSID60146993

29339990

Characteristics

53.1

2.9

1.3228 (rough estimate)

152 °C @ Solvent: Diisopropyl ether

449.7±25.0 °C(Predicted)

225.8±23.2 °C

1.5790 (estimate)

0-6°C

Safety Information

IRRITANT

NONH for all modes of transport

3

22-36/37/38

26-36-37/39

NL5998400

Xn,Xi

P261-P305 + P351 + P338

H302-H315-H319-H335

|Warning|H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]|P261, P264, P270, P271, P280, P301+P312, P302+P352, P304+P340, P305+P351+P338, P312, P321, P330, P332+P313, P337+P313, P362, P403+P233, P405, and P501|Aggregated GHS information provided by 45 companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Drug Information

5-chloroindole-2-carboxylate

5-Chloro-1H-indole-2-carboxylic acid Use and Manufacturing

Methods of Manufacturing

A mixture of 111.5 g of 5-chloroindole-2-carboxylate in 31.25 g of 96percent sodium hydroxide, 183 ml of methanol and 183 ml of water was heated under reflux for 1 hour, cooled to 40 ° C, Dropping 10percent hydrochloric acid to pH 3 to 4, fully cooled, The product was filtered to give 90.1 g of an off-white indole-2-carboxylic acid in a yield of 92.5percent and an HPLC content of ≥96percentA mixture of compound 3a (33.5 g, 0.15 mol), 4percent NaOH solution (335 mL) and ethanol (335 mL) was heated to reflux for 3 h. Upon cooling to room temperature, the mixture was poured into ice-water, adjusted to pH 5 with glacial acetic acid, and then the precipitate was collected by filtration. 4a was obtained as a white solid (26.4 g, 90percent). m.p. 295-298 °C. ESI-MS m/z: 193.4 (Cl = 35), 195.4 (Cl = 37) [M - H]

Uses

NMDA receptor antagonist (gly)

Computed Properties

Molecular Weight:195.60
XLogP3:2.9
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:2
Rotatable Bond Count:1
Exact Mass:195.0087061
Monoisotopic Mass:195.0087061
Topological Polar Surface Area:53.1
Heavy Atom Count:13
Complexity:222
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

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