Indigotindisulfonate
Overview
Indigotindisulfonate is a small molecule active pharmaceutical ingredient (ChEMBL CHEMBL1091250).
API suppliers (2)
Suppliers of Indigotindisulfonate evidenced by a US FDA Type II Drug Master File or an EU Certificate of Suitability (CEP). Sources: FDA DMF list, EDQM certification database.
1 of 2 holds a GMP certificate on record in the EU or UK registers
- Dishman Carbogen Amcis LimitedIndia1 active DMF GMP on record
- MACSEN DRUGSIndia1 active DMF
Patent & exclusivity (US)
Per the FDA Orange Book (1 approved US product), the latest listed US patent on Indigotindisulfonate expires 23 Dec 2037 and exclusivity 8 Jul 2027. Generic API sourcing typically opens up once these lapse.
Chemical identity
- IUPAC name
- (2E)-3-oxo-2-(3-oxo-5-sulfo-1H-indol-2-ylidene)-1H-indole-5-sulfonic acid
- Canonical SMILES
- C1=CC2=C(C=C1S(=O)(=O)O)C(=O)/C(=C\3/C(=O)C4=C(N3)C=CC(=C4)S(=O)(=O)O)/N2
- InChIKey
- CFZXDJWFRVEWSR-BUHFOSPRSA-N
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