Isatin-5-sulfonic acid sodium salt dihydrate 207399-16-4

Name: Isatin-5-sulfonic acid sodium salt dihydrate
Brand: Vaqora Chemicals
SKU: VQ-032610

About Isatin-5-sulfonic acid sodium salt dihydrate

Listed under CAS 207399-16-4, Isatin-5-sulfonic acid sodium salt dihydrate is an impurity of Indigo Carmine available from Vaqora Chemicals. The compound has the formula C8H8NNaO7S, corresponding to a molecular weight of 285.21 g/mol. Alternative names: Isatin-5-sulfonic acid sodium salt dehydrate and Sodium isatin-5-sulfonate dihydrate.

It is supplied as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. It carries the GHS signal word “Warning” with 3 hazard statements. Review the Safety Data Sheet before use.

As a characterised impurity of Indigo Carmine, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Isatin-5-sulfonic acid sodium salt dihydrate in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Industries

Related to Indigo Carmine

View every impurity, metabolite and intermediate we list for Indigo Carmine.

Indigo Carmine impurities

Specifications & identifiers

Chemical identifiers
Product name	Isatin-5-sulfonic acid sodium salt dihydrate
Catalogue No.	VQ-032610
CAS Number	207399-16-4
IUPAC name	sodium;2,3-dioxo-1H-indole-5-sulfonate;dihydrate
Molecular formula	C₈H₈NNaO₇S
Molecular weight	285.21 g/mol
Exact mass	284.9919
Grade	Reference Standard
HSN code	38229090
InChIKey	QOAFLTFHMZZJFP-UHFFFAOYSA-M
SMILES	C1=CC2=C(C=C1S(=O)(=O)[O-])C(=O)C(=O)N2.O.O.[Na+]
PubChem CID	51003678

Physical properties
Physical form	Solid
H-bond donors / acceptors	3 / 7
TPSA	114 Å²
Synonyms	Isatin-5-sulfonic acid sodium salt dehydrate, sodium 2,3-dioxoindoline-5-sulfonate dihydrate, Sodium isatin-5-sulfonate dihydrate, 1H-Indole-5-sulfonicacid, 2,3-dihydro-2,3-dioxo-, sodium salt, hydrate (1:1:2), sodium2,3-dioxoindoline-5-sulfonatedihydrate, Sodium 2,3-dioxo-2,3-dihydro-1H-indole-5-sulfonate--water (1/1/2)

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Isatin-5-sulfonic acid sodium salt dihydrate?

The CAS Registry Number of Isatin-5-sulfonic acid sodium salt dihydrate is 207399-16-4. It is also known as Isatin-5-sulfonic acid sodium salt dehydrate, sodium 2,3-dioxoindoline-5-sulfonate dihydrate, Sodium isatin-5-sulfonate dihydrate.

What is the molecular formula and molecular weight of Isatin-5-sulfonic acid sodium salt dihydrate?

Isatin-5-sulfonic acid sodium salt dihydrate has the molecular formula C8H8NNaO7S and a molecular weight of 285.21 g/mol.

What is Isatin-5-sulfonic acid sodium salt dihydrate used for?

Isatin-5-sulfonic acid sodium salt dihydrate is supplied as a characterised reference material related to Indigo Carmine. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Isatin-5-sulfonic acid sodium salt dihydrate can I order?

We supply Isatin-5-sulfonic acid sodium salt dihydrate in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Isatin-5-sulfonic acid sodium salt dihydrate?

Yes. Every lot of Isatin-5-sulfonic acid sodium salt dihydrate is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Isatin-5-sulfonic acid sodium salt dihydrate be shipped internationally?

Yes. Isatin-5-sulfonic acid sodium salt dihydrate is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.