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API Process Intermediates & Related Compounds

3,3'-Dioxo-2,2'-bi-indolylidene-5-sulfonic acid

Available on request

Buy 3,3'-Dioxo-2,2'-bi-indolylidene-5-sulfonic acid (CAS 605-18-5) from Zemixal: C16H10N2O5S, COA and SDS with every lot, worldwide shipping.

Pack sizes
3,3'-Dioxo-2,2'-bi-indolylidene-5-sulfonic acid chemical structure
CAS number605-18-5
FormulaC16H10N2O5S
Molar mass342.3 g/mol
Physical formSolid
HS code2933
InChIKeyTVTJICYIISCRFS-UHFFFAOYSA-N
IUPAC name3-hydroxy-2-(3-oxoindol-2-yl)-1H-indole-5-sulfonic acid

About 3,3'-Dioxo-2,2'-bi-indolylidene-5-sulfonic acid

3,3'-Dioxo-2,2'-bi-indolylidene-5-sulfonic acid sits in our API Process Intermediates & Related Compounds section and ships worldwide from stock or short lead time. Identity at a glance: CAS 605-18-5, formula C16H10N2O5S and molar mass 342.3 g/mol. It is handled as a solid.

Typical applications

  • API route development
  • Impurity fate & purge studies
  • Analytical method development
  • Fine chemical synthesis

Safe handling

Handle with the usual laboratory precautions and consult the SDS supplied with each lot.

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. You receive a batch certificate of analysis and a 16-section SDS with each order. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Indigotindisulfonate

See every impurity, metabolite and related compound we list for this API.

Indigotindisulfonate standards

Typical uses

  • API route development
  • Impurity fate & purge studies
  • Analytical method development
  • Fine chemical synthesis

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Specifications and identifiers

Specifications of 3,3'-Dioxo-2,2'-bi-indolylidene-5-sulfonic acid
Product name3,3'-Dioxo-2,2'-bi-indolylidene-5-sulfonic acid
Catalogue numberZX-044221
CAS number605-18-5
IUPAC name3-hydroxy-2-(3-oxoindol-2-yl)-1H-indole-5-sulfonic acid
Molecular formulaC16H10N2O5S
Molar mass342.3 g/mol
Exact mass342.031
Physical formSolid
XLogP31.5
H-bond donors / acceptors3 / 6
Topological polar surface area128 Ų
HS code2933
InChIKeyTVTJICYIISCRFS-UHFFFAOYSA-N
SMILESC1=CC=C2C(=C1)C(=O)C(=N2)C3=C(C4=C(N3)C=CC(=C4)S(=O)(=O)O)O
PubChem CID135565630
SynonymsIndigo sulfonic acid, 2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)- 2,3-dihydro-3-oxo-1H-indole-5-sulfonic acid, (2E)-3-Oxo-2-(3-oxo-1,3-dihydro-2H-indol-2-ylidene)-2,3-dihydro-1H-indole-5-sulfonic acid

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

No GHS classification is on file for this item. Handle it as an unknown laboratory chemical and request the SDS with your quotation.

Pack sizes

Pack sizes of 3,3'-Dioxo-2,2'-bi-indolylidene-5-sulfonic acid
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about 3,3'-Dioxo-2,2'-bi-indolylidene-5-sulfonic acid

Which CAS number identifies 3,3'-Dioxo-2,2'-bi-indolylidene-5-sulfonic acid?
3,3'-Dioxo-2,2'-bi-indolylidene-5-sulfonic acid is registered under CAS 605-18-5. You may also see it listed as Indigo sulfonic acid, 2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)- 2,3-dihydro-3-oxo-1H-indole-5-sulfonic acid, (2E)-3-Oxo-2-(3-oxo-1,3-dihydro-2H-indol-2-ylidene)-2,3-dihydro-1H-indole-5-sulfonic acid. Our catalogue number for this item is ZX-044221.
What are the formula and molar mass of 3,3'-Dioxo-2,2'-bi-indolylidene-5-sulfonic acid?
For 3,3'-Dioxo-2,2'-bi-indolylidene-5-sulfonic acid, its formula is C16H10N2O5S and its molar mass is 342.3 g/mol. The systematic (IUPAC) name is 3-hydroxy-2-(3-oxoindol-2-yl)-1H-indole-5-sulfonic acid. InChIKey TVTJICYIISCRFS-UHFFFAOYSA-N lets you match it in any structure database.
How is 3,3'-Dioxo-2,2'-bi-indolylidene-5-sulfonic acid used in pharmaceutical QC?
3,3'-Dioxo-2,2'-bi-indolylidene-5-sulfonic acid is a characterised reference material linked to Indigotindisulfonate. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for 3,3'-Dioxo-2,2'-bi-indolylidene-5-sulfonic acid?
The grade and assay are confirmed on the quotation and the batch COA. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with 3,3'-Dioxo-2,2'-bi-indolylidene-5-sulfonic acid?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship 3,3'-Dioxo-2,2'-bi-indolylidene-5-sulfonic acid to my country?
Yes. 3,3'-Dioxo-2,2'-bi-indolylidene-5-sulfonic acid ships worldwide by express courier, air cargo or sea freight, quoted on the Incoterm you prefer, with full export documents.

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