CAS Registry Number: 90322-37-5

Name:

1H-​Indole-​4-​carboxylic acid, 2,​3-​dihydro-​2-​oxo-
4-​Indolinecarboxylic acid, 2-​oxo- (7CI); 2-​Oxo-​1,​3-​dihydro-​2H-​indole-​4-​carboxylic acid; 4-​Carboxy-​2-​oxindole 

Chemical Formula: C9H7NO3
Exact Mass: 177.04
Molecular Weight: 177.16
m/z: 177.04 (100.0%), 178.05 (9.9%), 179.05 (1.1%)

InChI: InChI=1S/C9H7NO3/c11-8-4-6-5(9(12)13)2-1-3-7(6)10-8/h1-3H,4H2,(H,10,11)(H,12,13)
InChIKey: ALXJUSWINGKGAW-UHFFFAOYSA-N
Canonical SMILES : C1C2=C(C=CC=C2NC1=O)C(=O)O

Specification

98%

PCT Int. Appl. (2014), WO 2014113303 A1 20140724.

PCT Int. Appl. (2003), WO 2003015608 A2 20030227.