Formamidine Sulfinic Acid

Name: Formamidine Sulfinic Acid
Brand: Vaqora Chemicals
SKU: VQ-049433

About Formamidine Sulfinic Acid

Listed under CAS 1758-73-2, Formamidine Sulfinic Acid is an API reference standard available from Vaqora Chemicals. Formula CH4N2O2S, molecular weight 108.12 g/mol. Its systematic (IUPAC) name is amino(imino)methanesulfinic acid. Common synonyms include Formamidine Sulfuric Acid and Thiourea dioxide.

It is supplied as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

Laboratories use this the parent drug substance standard for identity and assay testing, system suitability checks and method validation supporting ANDA and DMF filings. It is used across pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Formamidine Sulfinic Acid in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Identification & assay
Method development & validation
QC reference material

Industries

Specifications & identifiers

Chemical identifiers
Product name	Formamidine Sulfinic Acid
Catalogue No.	VQ-049433
CAS Number	1758-73-2
IUPAC name	amino(imino)methanesulfinic acid
Molecular formula	CH₄N₂O₂S
Molecular weight	108.12 g/mol
Exact mass	107.9993
Grade	Reference Standard
HSN code	38229090
InChIKey	FYOWZTWVYZOZSI-UHFFFAOYSA-N
SMILES	C(=N)(N)S(=O)O
PubChem CID	61274

Physical properties
Physical form	Solid
LogP (XLogP3)	-1.1
H-bond donors / acceptors	3 / 4
TPSA	106 Å²
Synonyms	Formamidine Sulfuric Acid, Thiourea dioxide, carbamimidoylsulfinic acid, Aminoiminomethanesulphinic acid, Methanesulfinic acid, 1-amino-1-imino-, Methanesulfinic acid, aminoimino-, Methenesulfinic acid, aminoimino-, Formamidinesulphinic acid, Urea, thio-, 2,2-dioxide

Safety & hazard information (GHS)

Flammable

Corrosive

Harmful / irritant

Health hazard

Signal word: Danger

Hazard statements

H251Self-heating, may catch fire
H252Self-heating in large quantities, may catch fire
H302Harmful if swallowed
H315Causes skin irritation
H318Causes serious eye damage
H319Causes serious eye irritation
H332Harmful if inhaled
H335May cause respiratory irritation
H373May causes damage to organs through prolonged or repeated exposure

Precautionary statements: P235, P260, P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P305 + P354 + P338, P317, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P407, P410

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 Formamidine Sulfinic Acid?

The CAS Registry Number of Formamidine Sulfinic Acid is 1758-73-2. It is also known as Formamidine Sulfuric Acid, Thiourea dioxide, carbamimidoylsulfinic acid.

What is the molecular formula and molecular weight of Formamidine Sulfinic Acid?

Formamidine Sulfinic Acid has the molecular formula CH4N2O2S and a molecular weight of 108.12 g/mol. Its IUPAC name is amino(imino)methanesulfinic acid.

Which grade and pack sizes of Formamidine Sulfinic Acid can I order?

We supply Formamidine Sulfinic Acid 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 Formamidine Sulfinic Acid?

Yes. Every lot of Formamidine Sulfinic Acid 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 Formamidine Sulfinic Acid be shipped internationally?

Yes. Formamidine Sulfinic Acid 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.