5-Nitro-1,3-benzoxazole

Also known as: 5-Nitrobenzoxazole, 5-Nitrobenzo[d]oxazole, 5-Nitro-benzoxazol, 5-nitro-benzooxazole, 5-nitrobenzisoxazole, Benzoxazole, 5-nitro-, benzo[d]oxazole, 5-nitro-

5-Nitro-1,3-benzoxazole (CAS 70886-33-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H4N2O3 and a molecular weight of 164.11800 g/mol. Key properties include a melting point of 127-129ºC, a boiling point of 294.2ºC at 760 mmHg, a density of 1.473g/cm3 and a flash point of 131.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 70886-33-8
Jingsj CID: J-1113423-9
Molecular Formula: C₇H₄N₂O₃
Molecular Weight: 164.11800 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	127-129ºC
Boiling Point	294.2ºC at 760 mmHg
Density	1.473g/cm3
Flash Point	131.7ºC
Exact Mass	164.02200
PSA	71.85000
LogP	2.25920
Refractive Index	1.658

Customs & Trade Information

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 5-Nitro-1,3-benzoxazole?

The CAS number of 5-Nitro-1,3-benzoxazole is 70886-33-8.

What are the molecular formula and molecular weight of 5-Nitro-1,3-benzoxazole?

5-Nitro-1,3-benzoxazole has molecular formula C7H4N2O3 and molecular weight 164.11800 g/mol.

What are the upstream and downstream products of 5-Nitro-1,3-benzoxazole?

For 5-Nitro-1,3-benzoxazole, Upstream Products: 1,1,2-Triethoxyethane, 2-Amino-4-nitrophenol, Triethyl orthoformate; Downstream Products: 1,3-Benzoxazol-5-amine, 2-Bromo-5-nitrobenzo[d]oxazole, 5-Nitro-2-phenyl-1,3-benzoxazole.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "5-Nitro-1,3-benzoxazole (CAS 70886-33-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1113423-9 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.