2,5-dimethyl-4-nitrophenol

Also known as: 4-Nitro-2,5-xylenol, 4-Nitro-p-xylenol, 5-Nitro-2-hydroxy-p-xylol, 5-Nitro-2-oxy-1,4-dimethyl-benzol, NSC 135201, Phenol, 2,5-dimethyl-4-nitro-, 2,5-Dimethyl-4-nitro-phenol, 2-Hydroxy-5-nitro-1,4-xylene

2,5-dimethyl-4-nitrophenol (CAS 3139-05-7) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C8H9NO3 and a molecular weight of 166.17700 g/mol. Key properties include a melting point of 134-136ºC, a boiling point of 342.5ºC at 760mmHg, a density of 1.22g/cm3 and a flash point of 160.9ºC. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.: 3139-05-7
Jingsj CID: J-1142118-4
Molecular Formula: C₈H₉NO₃
Molecular Weight: 166.17700 g/mol
Category: Alcohols
Last updated: 11/2/2026

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Physicochemical Properties

Melting Point	134-136ºC
Boiling Point	342.5ºC at 760mmHg
Density	1.22g/cm3
Flash Point	160.9ºC
Exact Mass	166.07400
PSA	71.84000
LogP	2.89820
Refractive Index	1.585

Customs & Trade Information

HS Code	2908999090
Summary	2908999090 halogenated, sulphonated, nitrated or nitrosated derivatives of phenols or phenol-alcohols。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2,5-dimethyl-4-nitrophenol?

The CAS number of 2,5-dimethyl-4-nitrophenol is 3139-05-7.

What are the molecular formula and molecular weight of 2,5-dimethyl-4-nitrophenol?

2,5-dimethyl-4-nitrophenol has molecular formula C8H9NO3 and molecular weight 166.17700 g/mol.

What are the upstream and downstream products of 2,5-dimethyl-4-nitrophenol?

For 2,5-dimethyl-4-nitrophenol, Upstream Products: 2,5-Dimethylphenol, 2,5-Dimethyl-4-nitrosophenol, 1-Methoxy-2,5-dimethyl-4-nitrobenzene; Downstream Products: 4-Amino-2,5-dimethylphenol, 3,6-Dimethyl-2,4-dinitrophenol, 1-Methoxy-2,5-dimethyl-4-nitrobenzene.

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

Last updated: 11/2/2026

How to cite: Jingsj. "2,5-dimethyl-4-nitrophenol (CAS 3139-05-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1142118-4 (accessed 2026-11-09).

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