Skip to main content

2-Methyl-4-nitroaniline

Also known as: 2-Amino-5-nitrotoluene, 4-Nitro-2-toluidine, 4-Nitro-o-toluidine, p-Nitro-o-toluidine, p-Nitro-o-methylaniline, 2-Methyl-4-nitrobenzenamine, Benzenamine, 2-methyl-4-nitro-, Fast Red RL Base, Fast Red RL, Red Base RL, C.I. Azoic Diazo Component 34, MNA, Diabase Red RL, Naphtoelan Red RL

2-Methyl-4-nitroaniline (CAS 99-52-5) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C7H8N2O2 and a molecular weight of 152.151 g/mol. Key properties include a melting point of 130-132 °C(lit.), a boiling point of 341.0±22.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 160.1±22.3 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H311 — Toxic in contact with skin and H331 — Toxic if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
99-52-5
Jingsj CID
J-3613-3
Molecular Formula
C7H8N2O2
Molecular Weight
152.151 g/mol
Category
Organic Bases
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point130-132 °C(lit.)
Boiling Point341.0±22.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point160.1±22.3 °C
Exact Mass152.058578
PSA71.84000
LogP1.85
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.616

GHS Safety & Compliance

Acute Toxicity / Health Hazard / Environmental HazardSignal word: Danger
  • H301 — Toxic if swallowed
  • H311 — Toxic in contact with skin
  • H331 — Toxic if inhaled
  • H373 — May cause damage to organs through prolonged exposure
  • H411 — Toxic to aquatic life with long lasting effects

Customs & Trade Information

HS Code2921430090
SummaryHS:2921430090 toluidines and their derivatives; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2-Methyl-4-nitroaniline?

The CAS number of 2-Methyl-4-nitroaniline is 99-52-5.

What are the molecular formula and molecular weight of 2-Methyl-4-nitroaniline?

2-Methyl-4-nitroaniline has molecular formula C7H8N2O2 and molecular weight 152.151 g/mol.

Is 2-Methyl-4-nitroaniline hazardous?

2-Methyl-4-nitroaniline has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H311 — Toxic in contact with skin; H331 — Toxic if inhaled.

What are the upstream and downstream products of 2-Methyl-4-nitroaniline?

For 2-Methyl-4-nitroaniline, Upstream Products: o-Toluidine, 3-Nitrotoluene, 2'-Methylacetanilide; Downstream Products: N-(4-Amino-2-methylphenyl)benzamide, 3-methyl-4-(trifluoromethyl)aniline, 1-isocyanato-2-methyl-4-nitrobenzene.

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

Last updated:

How to cite: Jingsj. "2-Methyl-4-nitroaniline (CAS 99-52-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-3613-3 (accessed 2026-11-06).

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