Description

p-Toluidine (CAS No. 106-49-0), also known as 4-methylaniline, is a high-purity aromatic amine with the molecular formula C₇H₉N. This organic compound is a derivative of aniline, featuring a methyl group at the para position of the benzene ring. p-Toluidine is a colorless to pale yellow crystalline solid or liquid (depending on temperature) with a characteristic amine odor. It is widely utilized in organic synthesis, dye manufacturing, and as a chemical intermediate in pharmaceutical and agrochemical applications. Our product is rigorously tested to ensure superior quality, with purity levels suitable for research, industrial, and laboratory use. Proper handling is essential due to its toxic and potentially carcinogenic properties.

Key Specifications:
– CAS Number: 106-49-0
– Molecular Formula: C₇H₉N
– IUPAC Name: 4-methylaniline
– Synonyms: 4-Toluidine, 4-Methylbenzenamine
– Purity: ≥98% (GC)
– Appearance: Colorless to pale yellow crystalline solid/liquid
– Melting Point: 43-45°C
– Boiling Point: 200-202°C

Properties

• CAS Number: 106-49-0
• Complexity: 62.8
• IUPAC Name: 4-methylaniline
• InChI: InChI=1S/C7H9N/c1-6-2-4-7(8)5-3-6/h2-5H,8H2,1H3
• InChI Key: RZXMPPFPUUCRFN-UHFFFAOYSA-N
• LogP: log Kow = 1.39
• Exact Mass: 107.073499291
• Molecular Formula: C7H9N
• Molecular Weight: 107.15
• SMILES: CC1=CC=C(C=C1)N
• Topological: 26
• Monoisotopic Mass: 107.073499291
• Physical Description: P-toluidine is a colorless solid. Melting point 44 °C . Specific gravity 1.046. Vapor heavier than air. Produces toxic oxides of nitrogen during combustion. May be absorbed through the skin. Used in dyes, and in organic chemical manufacturing.
• Color/Form: Lustrous plates or leaflets
• Odor: Aromatic, wine-like odor
• Taste: Burning taste
• Boiling Point: 393 °F at 760 mmHg
• Melting Point: 112.1 °F
• Flash Point: 188 °F
• Solubility: 0.7 %
• Density: 1 at 68 °F
• Vapor Density: 3.90
• Vapor Pressure: 1 mmHg at 108 °F
• Henry’s Law Constant: Henry’s Law constant = 2.02X10-6 atm-cu m/mol at 25 °C
• Autoignition Temperature: 899 °F
• Heat of Vaporization: 44.3 kJ/mol at 200.4 °C
• Ionization Potential: 7.50 eV
• Odor Threshold: Odor Threshold Low: 0.02 [ppm]
• Refractive Index: Index of refraction: 1.5534 at 45 °C/D
• Dissociation Constants: pKa = 5.10 at 25 °C
• Synonyms: p-Toluidine, 4-Methylaniline, 106-49-0, 4-Toluidine, 4-Methylbenzenamine, p-Tolylamine, 4-AMINOTOLUENE, Benzenamine, 4-methyl-, p-Aminotoluene, para-toluidine, Toluidine, p-, RCRA waste number U353, Tolylamine, p-Toluidyna, p-Toluidyna [Polish], C.I. Azoic Coupling Component 107, NSC 15350, CCRIS 598, C.I. 37107, 4methylaniline, 26915-12-8, DTXSID6021872, HSDB 2044, 4-tolylamine, UNII-I1D0KL7I4U, EINECS 203-403-1, CHEBI:37825, AI3-19858, 4-METHYLBENZAMINE, NSC-15350, P-TOLUIDINE [MI], P-TOLUIDINE [USP-RS], 4-AMINOTOLUENE [HSDB], DTXCID601872, EC 203-403-1, P-TOLUIDINE [USP IMPURITY], p-Toluidyna (Polish), AMINOBENZOIC ACID IMPURITY D [EP IMPURITY], P-TOLUIDINE (USP-RS), P-TOLUIDINE (USP IMPURITY), AMINOBENZOIC ACID IMPURITY D (EP IMPURITY), 4-Methyl-1-aminobenzene, pAminotoluene, pMethylaniline, pToluidyna, pTolylamine, pToluidin, Tolyamine, 4Aminotoluene, 4Aminotoluen, p-Tolyamine, 4Toluidine, Aniline, pmethyl, pMethylbenzenamine, Toluidine, p, 4Methylbenzenamine, Naphtol ASKG, Naphtol ASKGLL, p-Methylbenzeneamine, 1Amino4methylbenzene, 4Amino1methylbenzene, Benzenamine, 4methyl, Benzamine, 4-methyl-, p-Toluidine (ACGIH), Benzolamin, 4-methyl-, 1-Amino-4-methylbenzol, 4-METHYLBENZENEAMINE, Benzenamine, 4-methyl-(9CI), inchi=1/c7h9n/c1-6-2-4-7(8)5-3-6/h2-5h,8h2,1h, rzxmppfpuucrfn-uhfffaoysa-n, un 1708 (salt/mix), un1993, p-Methylaniline, p-Toluidin, p-Methylbenzenamine, 1-Amino-4-methylbenzene, Naphtol AS-KG, Naphtol AS-KGLL, Aniline, p-methyl-, 4-Aminotoluen, 4-Amino-1-methylbenzene, 12221-03-3, 4-methylphenylamine, AZOIC COUPLING COMPONENT 107, Aniline, 4-methyl-, I1D0KL7I4U, CHEMBL58521, MFCD00007906, p-Toluidin [Czech], 4-Aminotoluen [Czech], CAS-106-49-0, CI Azoic Coupling Component 107, RCRA waste no. U353, paratoluidine, CI 37107, p-tolyl-amine, 4-amino-toluene, para-methylaniline, 4-methyl aniline, 4-methyl-aniline, 4MN, 4-methyl-phenylamine, p-Toluidine, 99%, section signa-Touidine, p-Toluidine, 99.6%, WLN: ZR D1, SCHEMBL11887, SCHEMBL20885, SCHEMBL67805, p-Toluidine, liquid or solid, SCHEMBL132493, SCHEMBL316420, SCHEMBL1205072, SCHEMBL2528624, SCHEMBL2968829, SCHEMBL8649895, SCHEMBL11645430, p-Toluidine, for synthesis, 99%, C.I.Azoic Coupling Component 107, NSC15350, Tox21_202142, Tox21_300168, BDBM50008562, SBB040498, STL137776, AKOS000119134, GS-6708, p-Toluidine 100 microg/mL in Methanol, NCGC00247917-01, NCGC00247917-02, NCGC00247917-03, NCGC00254002-01, NCGC00259691-01, BP-11946, DB-024354, NS00003075, p-Toluidine, SAJ special grade, >=99.0%, ST45255282, T0300, EN300-17941, p-Toluidine, liquid or solid [UN1708] [Poison], Q2043499, Z57127875, F2190-0420, P-TOLUIDINE, United States Pharmacopeia (USP) Reference Standard, p-Toluidine, for spectrophotometric det. of Au, Tl(III), W, >=99.0%

Application

p-Toluidine is primarily used as a key intermediate in the synthesis of dyes, pigments, and pharmaceuticals. It serves as a precursor in the production of azo dyes, which are widely employed in textiles, inks, and coatings. In the agrochemical industry, it is utilized for manufacturing pesticides and herbicides. Additionally, p-Toluidine finds applications in organic chemistry research as a reagent for synthesizing heterocyclic compounds and as a corrosion inhibitor in industrial processes.

Safety and Hazards

GHS Hazard Statements

• Not Classified

Precautionary Statements

• P203, P260, P261, P262, P264, P264+P265, P270, P271, P272, P273, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P308+P316, P316, P318, P319, P321, P330, P333+P317, P337+P317, P361+P364, P362+P364, P391, P403+P233, P405, and P501

Hazard Classes and Categories

• Acute Tox. 3 (73.8%)
• Acute Tox. 3 (73.8%)
• Skin Sens. 1 (73.8%)
• Eye Irrit. 2 (73.8%)
• Acute Tox. 3 (73.8%)
• Carc. 2 (73.8%)
• STOT RE 2 (73.8%)
• Aquatic Acute 1 (73.8%)
• Aquatic Chronic 2 (73.8%)

If you are interested or have any questions, please contact us at support@atomfair.com

Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.