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3-(Methylthio)aniline

CAS No.
1783-81-9
Chemical Name:
3-(Methylthio)aniline
Synonyms
3-AMINOTHIOANISOLE;3-(methylthio)benzenamine;AKOS 91141;3-Methylthio;M-THIOANISIDINE;3-Aminothionisole;M-AMINOTHIOANISOLE;3-(METHYLTHIO)ANILIN;M-(METHYLTHIO)ANILINE;m-(methylthio)-anilin
CBNumber:
CB3154245
Molecular Formula:
C7H9NS
Molecular Weight:
139.22
MDL Number:
MFCD00007793
MOL File:
1783-81-9.mol
MSDS File:
SDS
Last updated:2026-09-12 18:51:44

3-(Methylthio)aniline Properties

Boiling point 163-165 °C16 mm Hg(lit.)
Density 1.13 g/mL at 25 °C(lit.)
vapor pressure 1.66Pa at 25℃
refractive index n20/D 1.637(lit.)
Flash point >230 °F
storage temp. Keep in dark place,Inert atmosphere,Room temperature
pka 3.96±0.10(Predicted)
form clear liquid
color Colorless to Light orange to Yellow
Specific Gravity 1/130
BRN 2078599
InChI 1S/C7H9NS/c1-9-7-4-2-3-6(8)5-7/h2-5H,8H2,1H3
InChIKey KCHLDNLIJVSRPK-UHFFFAOYSA-N
SMILES CSc1cccc(N)c1
LogP 1.68
CAS DataBase Reference 1783-81-9(CAS DataBase Reference)
EWG's Food Scores 1
NIST Chemistry Reference 3-CH3SC6H4NH2(1783-81-9)
EPA Substance Registry System m-(Methylthio)aniline (1783-81-9)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P264-P271-P280-P302+P352-P305+P351+P338
target organs Respiratory system
PPE Eyeshields, Gloves, type ABEK (EN14387) respirator filter
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-37/39
RIDADR  UN 2810 6.1/PG 3
WGK Germany  3
RTECS  BY6301000
2-8-13
Hazard Note  Harmful
TSCA  TSCA listed
HazardClass  IRRITANT, STENCH
HazardClass  6.1
HS Code  29309090
Storage Class 10 - Combustible liquids
Hazard Classifications Eye Irrit. 2
Skin Irrit. 2
STOT SE 3
Toxicity LD50 orl-qal: 750 mg/kg AECTCV 12,355,83
REACH Registrations Active
NFPA 704
1
2 1

3-(Methylthio)aniline price More Price(35)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 144886 3-(Methylthio)aniline 97% 1783-81-9 5g $35.5 2026-04-30 Buy
Sigma-Aldrich 144886 3-(Methylthio)aniline 97% 1783-81-9 1g $28 2023-06-20 Buy
TCI Chemical M1673 3-(Methylthio)aniline >98.0%(GC)(T) 1783-81-9 25g $113 2026-04-30 Buy
Apolloscientific OR4782 3-(Methylthio)aniline >98% 1783-81-9 25g $24 2026-06-04 Buy
Apolloscientific OR4782 3-(Methylthio)aniline >98% 1783-81-9 100g $79 2026-06-04 Buy
Product number Packaging Price Buy
144886 5g $35.5 Buy
144886 1g $28 Buy
M1673 25g $113 Buy
OR4782 25g $24 Buy
OR4782 100g $79 Buy

3-(Methylthio)aniline Chemical Properties, Uses, Production

Chemical Properties

clear dark brown liquid

Uses

Pharmaceutical intermediate.

Uses

3-(Methylthio)aniline was used in the synthesis of phenyl azobenzene sulfonamide derivatives.

Hazard

See aniline.

Safety Profile

Moderately toxic by ingestion.When heated to decomposition it emits toxic vapors ofNOx and SOx.

Purification Methods

Purify the aniline by fractional distillation in an inert atmostphere. It has UV max at 226 and 300nm. [Bordwell & Cooper J Am Chem Soc 74 10581952.] The N-acetyl derivative has m 78-78.5o (from aqueous EtOH). The hydrochloride has m 260-261o (aqueous EtOH/HCl) or m 225-227o (EtOH/Et2O). [Beilstein 13 H 533, 13 III 1221, 13 IV 1289.]

3-(Methylthio)aniline Preparation Products And Raw materials

Global Suppliers ( 232)
Supplier Tel Email Country ProdList Advantage
nantong honglong 13078814179 13078814179 2771867773@qq.com China 961 58
Shanghai Boyle Chemical Co., Ltd. 021-50182298 021-50180596 sales@boylechem.com China 2202 55
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 4006356688 18621169109 market03@meryer.com China 40202 62
3B Pharmachem (Wuhan) International Co.,Ltd. 18930552037 3bsc@sina.com China 15813 69
Alfa Aesar 400-6106006 saleschina@alfa-asia.com China 30103 84
TCI (Shanghai) Development Co., Ltd. 021-67121386 Sales-CN@TCIchemicals.com China 24512 81
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
Wuhan Chemwish Technology Co., Ltd 86-027-67849912 sales@chemwish.com China 35884 56
Capot Chemical Co., Ltd +86 (0) 571 85 58 67 18 China 18187 66

View Latest Price from 3-(Methylthio)aniline manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
3-(Methylthio)aniline pictures 2026-09-11 3-(Methylthio)aniline
1783-81-9
100G 98%min 30kg/month WUHAN FORTUNA CHEMICAL CO., LTD
3-(METHYLTHIO)ANILINE pictures 2026-03-20 3-(METHYLTHIO)ANILINE
1783-81-9
$10.00 1KG 99% 10 mt Hebei Chuanghai Biotechnology Co., Ltd
3-(METHYLTHIO)ANILINE pictures 2024-04-27 3-(METHYLTHIO)ANILINE
1783-81-9
$20.00 1kg 99.9% 200000kg Ouhuang Engineering Materials (Hubei) Co., Ltd
M-(METHYLTHIO)ANILINE M-THIOANISIDINE 3-(METHYLMERCAPTO)ANILINE AKOS 91141 M-AMINOTHIOANISOLE 3-(Methylsulfanyl)aniline 3-(METHYLTHIO)ANILINE,97% 3-Aminothionisole BENZENE, 1-AMINO-3-(METHYLTHIO) 3-(Methylmercapto)aniline, 3-Aminothioanisole Methyl(3-aminophenyl) sulfide 3-(METHYLTHIO)ANILIN 3-(Methylthio)aniline, 97% 10GR 3-Aminothioanisolem-Thioanisidine 3-(methylthio)-benzenamin 3-Methylthio 3-Methylthiobenzenamine 3-Methyl Mercapto Aniline(Organic Chemicals) Aniline, 3-methylthio- Aniline, m-(methylthio)- Benzenamine, 3-(methylthio)- m-(methylthio)-anilin m-Aminophenyl methyl sulfide m-aminophenylmethylsulfide 3-Aminothioanisole/Meta-(Methylthio)aniline 3-Aminothioanisole~3-(Methylmercapto)aniline 3-(Methylthio)aniline> 3-(methylthio)benzenamine 3-AMINOTHIOANISOLE 3-(Methylthio)aniline 1783-81-9 C7H9NS Building Blocks AMINE Organic Building Blocks Sulfides/Disulfides Sulfur Compounds Amines Miscellaneous