Benzoxazole, 98%

About Benzoxazole, 98%

Benzoxazole is a heterocyclic building block carrying the CAS registry number 273-53-0 at a purity of 98%. The compound has the formula C7H5NO, corresponding to a molecular weight of 119.12 g/mol. Its systematic (IUPAC) name is 1,3-benzoxazole. Alternative names: 1-Oxa-3-aza-1H-indene and 1-Oxa-3-azaindene.

The material typically appears as a white to orange to yellow powder to lump to liquid. Reported physical data include a melting point of 27-30 °C. Store in a tightly closed container in a cool, dry and well-ventilated place. It carries the GHS signal word “Danger” with 6 hazard statements. Review the Safety Data Sheet before use.

Key uses span organic synthesis and API synthesis. It is used across pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 5 g and 25 g, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	Benzoxazole, 98%
Catalogue No.	VQ-012679
CAS Number	273-53-0
IUPAC name	1,3-benzoxazole
Molecular formula	C₇H₅NO
Molecular weight	119.12 g/mol
Exact mass	119.0371
Purity / assay	98%
HSN code	29349990
InChIKey	BCMCBBGGLRIHSE-UHFFFAOYSA-N
SMILES	C1=CC=C2C(=C1)N=CO2
PubChem CID	9228

Physical properties
Physical form	Powder
Appearance	White to orange to yellow powder to lump to liquid
Melting point	27-30 °C
LogP (XLogP3)	1.6
H-bond donors / acceptors	0 / 2
TPSA	26 Å²

Safety & hazard information (GHS)

Flammable

Harmful / irritant

Signal word: Danger

Hazard statements

H228Flammable solid
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H332Harmful if inhaled
H335May cause respiratory irritation

Precautionary statements: P210, P240, P241, P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P317, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, P370 + P378, 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 Benzoxazole, 98%?

The CAS Registry Number of Benzoxazole, 98% is 273-53-0. It is also known as 1-Oxa-3-aza-1H-indene, 1-Oxa-3-azaindene, 1,3-Benzoxazole #.

What is the molecular formula and molecular weight of Benzoxazole, 98%?

Benzoxazole, 98% has the molecular formula C7H5NO and a molecular weight of 119.12 g/mol. Its IUPAC name is 1,3-benzoxazole.

Which grade and pack sizes of Benzoxazole, 98% can I order?

We supply Benzoxazole, 98% in (98%) grade, in 5 g, 25 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Benzoxazole, 98%?

Yes. Every lot of Benzoxazole, 98% 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 Benzoxazole, 98% be shipped internationally?

Yes. Benzoxazole, 98% 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.