Canonical ingredient

1H-Indole-5-sulfonic acid, 2-(1,3-dihydro-3-oxo-5-sulfo- 2H-indol-2-ylidene)-2,3-dihydro-3-oxo-, disodium salt

INDIGO CARMINE

67 linked products

Official identifiers

CAS 860-22-0 ChEBI CHEBI:31695 InChI InChI=1S/C16H10N2O8S2.2Na/c19-15-9-5-7(27(21,22)23)1-3-11(9)17-13(15)14-16(20)10-6-8(28(24,25)26)2-4-12(10)18-14;;/h1-6,17-18H,(H,21,22,23)(H,24,25,26);;/q;2*+1/p-2/b14-13+;;InChIKey KHLVKKOJDHCJMG-QDBORUFSSA-L NHPID_ID 1069 SMILES O=C1/C(=C2\Nc3ccc(S(=O)(=O)[O-])cc3C2=O)Nc2ccc(S(=O)(=O)[O-])cc21.[Na+].[Na+]

Names and synonyms

1H-Indole-5-sulfonic acid, 2-(1,3-dihydro-3-oxo-5-sulfo- 2H-indol-2-ylidene)-2,3-dihydro-3-oxo-, disodium salt (en)
indigo carmine (en)
Bleu indigo (fr)
5,5'-[2-(1,3-Dihydro-3-oxo-2H-indazol-2-ylidène)-1,2-dihydro-3H-indol-3-one]disulfonate de disodium (fr-CA)

Source-scoped chemical properties

Every value keeps its own authority, licence and retrieval date. Conflicting values are not silently merged.

canada dsl listing: listed; canada_dsl_categorization · Open Government Licence - Canada 2.0 · 2026-08-03
dsl bioaccumulative: No; canada_dsl_categorization · Open Government Licence - Canada 2.0 · 2026-08-03
dsl inherently toxic aquatic: No; canada_dsl_categorization · Open Government Licence - Canada 2.0 · 2026-08-03
dsl meets cepa categorization: No; canada_dsl_categorization · Open Government Licence - Canada 2.0 · 2026-08-03
dsl meets environmental: No; canada_dsl_categorization · Open Government Licence - Canada 2.0 · 2026-08-03
dsl meets human health: No; canada_dsl_categorization · Open Government Licence - Canada 2.0 · 2026-08-03
dsl persistent: No; canada_dsl_categorization · Open Government Licence - Canada 2.0 · 2026-08-03
dsl substance category: Organics; canada_dsl_categorization · Open Government Licence - Canada 2.0 · 2026-08-03

Equivalent concepts in other registries

These links require an exact shared identifier; names alone are never sufficient.

FD&C Blue No. 2
CA · CAS 860-22-0
Verification source

Safety and technical documents

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0 document(s)

No verified SDS or technical sheet is linked yet. This absence is explicit and does not mean that no document exists.

End-to-end traceability

Only links supported by an identified source are published. Missing evidence remains explicitly unknown.

Partial chain

Evidence still missing

Country or region of origin
Raw-material producer
Ingredient manufacturer
Distributor
Transformation steps

Documented origins

No origin has been proven yet by an explicit source.

Documented organizations

No organization has been proven yet by an explicit source.

Documented transformations

No transformation step has been proven yet by an explicit source.

Method: a company’s registration country is never used as evidence of a material’s origin.

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