2-Hydroxybenzothiazole

Name: 2-Hydroxybenzothiazole
Brand: Vaqora Chemicals
SKU: VQ-049712

About 2-Hydroxybenzothiazole

2-Hydroxybenzothiazole (CAS 934-34-9) is a metabolite / degradant standard offered by Vaqora Chemicals. The compound has the formula C7H5NOS, corresponding to a molecular weight of 151.19 g/mol. Systematically, it is named 3H-1,3-benzothiazol-2-one. Common synonyms include Benzothiazolone and 2(3H)-Benzothiazolone.

The product is provided as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

It is used in metabolite identification, stability-indicating method development and impurity profiling, as well as in QC testing and ANDA/DMF documentation. It is used across pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Metabolite identification
Stability-indicating methods
Impurity profiling

Industries

Specifications & identifiers

Chemical identifiers
Product name	2-Hydroxybenzothiazole
Catalogue No.	VQ-049712
CAS Number	934-34-9
IUPAC name	3H-1,3-benzothiazol-2-one
Molecular formula	C₇H₅NOS
Molecular weight	151.19 g/mol
Exact mass	151.0092
Grade	Reference Standard
HSN code	38229090
InChIKey	YEDUAINPPJYDJZ-UHFFFAOYSA-N
SMILES	C1=CC=C2C(=C1)NC(=O)S2
PubChem CID	13625

Physical properties
Physical form	Solid
LogP (XLogP3)	1.8
H-bond donors / acceptors	1 / 2
TPSA	54.4 Å²
Synonyms	Benzothiazolone, 2(3H)-Benzothiazolone, 1,3-Benzothiazol-2-ol, 2-Benzothiazolinone, 2-oxobenzothiazole, 3H-benzothiazole-2-one, Benzothiazol, 2-hydroxy-, 2-Benzothiazolol (keto form), Carbamothioic acid, (2-mercatophenyl)-, gamma-lactone, Carbamothioic acid, (2-mercatophenyl)-, .gamma.-lactone, 2-Benzothiazolinone (8CI), (2-Mercatophenyl)carbamothioate g-lactone

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed
H312Harmful in contact with skin
H332Harmful if inhaled

Precautionary statements: P261, P264, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P317, P321, P330, P362 + P364, 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 2-Hydroxybenzothiazole?

The CAS Registry Number of 2-Hydroxybenzothiazole is 934-34-9. It is also known as Benzothiazolone, 2(3H)-Benzothiazolone, 1,3-Benzothiazol-2-ol.

What is the molecular formula and molecular weight of 2-Hydroxybenzothiazole?

2-Hydroxybenzothiazole has the molecular formula C7H5NOS and a molecular weight of 151.19 g/mol. Its IUPAC name is 3H-1,3-benzothiazol-2-one.

Which grade and pack sizes of 2-Hydroxybenzothiazole can I order?

We supply 2-Hydroxybenzothiazole 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 2-Hydroxybenzothiazole?

Yes. Every lot of 2-Hydroxybenzothiazole 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 2-Hydroxybenzothiazole be shipped internationally?

Yes. 2-Hydroxybenzothiazole 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.