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4-Fluoro-2-methylaniline

CAS No.
452-71-1
Chemical Name:
4-Fluoro-2-methylaniline
Synonyms
2-AMINO-5-FLUOROTOLUENE;4-Fluoro-2-methylbenzenamine;4-fluorotoluidine;4-FLUORO-O-TOLUIDINE;2-Fluoro-o-toluidine;4-Fluoro-2-methylani;o-Toluidine, 4-fluoro-;6-Amino-3-fluorotoluene;3-FLUORO-6-AMINOTOLUENE;2-Methyl-4-fluoroaniline
CBNumber:
CB9159888
Molecular Formula:
C7H8FN
Molecular Weight:
125.14
MDL Number:
MFCD00007832
MOL File:
452-71-1.mol
MSDS File:
SDS
Last updated:2025-07-24 18:13:52

4-Fluoro-2-methylaniline Properties

Melting point 14.2°C
Boiling point 90-92 °C/16 mmHg (lit.)
Density 1.126 g/mL at 25 °C (lit.)
refractive index n20/D 1.537(lit.)
Flash point 190 °F
storage temp. Keep in dark place,Inert atmosphere,2-8°C
pka 4.51±0.10(Predicted)
form clear liquid
color Light yellow to Yellow to Orange
Specific Gravity 1.126
BRN 1931798
CAS DataBase Reference 452-71-1(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII P7D3BF9SJM
NIST Chemistry Reference Benzenamine, 4-fluoro-2-methyl-(452-71-1)
EPA Substance Registry System 4-Fluoro-2-methylaniline (452-71-1)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H302+H312+H332-H315-H319-H335
Precautionary statements  P261-P280-P301+P312-P302+P352+P312-P304+P340+P312-P305+P351+P338
Hazard Codes  Xn,T,Xi
Risk Statements  20/21/22-36/37/38-23/24/25
Safety Statements  26-36/37/39-45-36
RIDADR  2810
WGK Germany  3
RTECS  CY0500000
Hazard Note  Toxic/Irritant
TSCA  T
HazardClass  6.1
PackingGroup  III
HS Code  29214300
NFPA 704
2
3 0

4-Fluoro-2-methylaniline price More Price(18)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 189243 4-Fluoro-2-methylaniline 96% 452-71-1 5g $37 2023-06-20 Buy
Sigma-Aldrich 189243 4-Fluoro-2-methylaniline 96% 452-71-1 25g $76.3 2023-01-07 Buy
TCI Chemical F0398 4-Fluoro-2-methylaniline >98.0%(GC)(T) 452-71-1 5g $36 2025-07-31 Buy
TCI Chemical F0398 4-Fluoro-2-methylaniline >98.0%(GC)(T) 452-71-1 25g $102 2025-07-31 Buy
TRC F593065 4-Fluoro-2-methylaniline 452-71-1 25g $105 2021-12-16 Buy
Product number Packaging Price Buy
189243 5g $37 Buy
189243 25g $76.3 Buy
F0398 5g $36 Buy
F0398 25g $102 Buy
F593065 25g $105 Buy

4-Fluoro-2-methylaniline Chemical Properties,Uses,Production

Chemical Properties

colorlesstolightyellowliqui

Uses

4-Fluoro-2-methylaniline was used in the synthesis of 4-fluoro-N-[(E)-{7-methoxy-2-[4-(methylsulfanyl)phenyl]-1-benzofuran-5-yl}methylidene]-2-methylaniline.

Synthesis

5-Fluoro-2-nitrotoluene

446-33-3

4-Fluoro-2-methylaniline

452-71-1

General procedure for the synthesis of 4-fluoro-2-methylaniline from 5-fluoro-2-nitrotoluene: 10% palladium/carbon (Pd/C, 21 mg, 0.020 mmol) was added to a solution of 4-fluoro-2-methyl-1-nitrobenzene (3b, 243 mL, 2.00 mmol) in methanol (MeOH, 10 mL). The reaction mixture was stirred at room temperature and bubbled with hydrogen (H2) for 2 hours. Upon completion of the reaction, the solid catalyst was removed by filtration and the solids were washed with dichloromethane (DCM, 25 mL). The filtrate and DCM wash solution were combined and concentrated under reduced pressure. The residue was purified by fast column chromatography (silica gel, petroleum ether (P.E.) gradient elution to petroleum ether:ethyl acetate (PE:EtOAc) 4:1) to afford 4-fluoro-2-methylaniline (4b) as a pink oil (250 mg, 100% yield).

References

[1] European Journal of Medicinal Chemistry, 2015, vol. 103, p. 539 - 550
[2] Collection of Czechoslovak Chemical Communications, 1984, vol. 49, # 1, p. 86 - 109
[3] Synlett, 2007, # 16, p. 2557 - 2558
[4] Acta Chemica Scandinavica (1947-1973), 1955, vol. 9, p. 1079,1083
[5] Chemische Berichte, 1929, vol. 62, p. 1804

446-33-3
452-71-1
Synthesis of 4-Fluoro-2-methylaniline from 5-Fluoro-2-nitrotoluene
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View Lastest Price from 4-Fluoro-2-methylaniline manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
4-Fluoro-2-methylaniline pictures 2025-08-08 4-Fluoro-2-methylaniline
452-71-1
US $0.00 / KG 1KG 99% 50000KG/month Hebei Mujin Biotechnology Co.,Ltd
4-Fluoro-2-methylaniline pictures 2025-07-25 4-Fluoro-2-methylaniline
452-71-1
US $0.00-0.00 / KG 1KG 98.0% 10000KGS Shaanxi Dideu New Materials Co. Ltd
4-Fluoro-2-methylaniline pictures 2025-06-27 4-Fluoro-2-methylaniline
452-71-1
US $0.00 / KG 1KG 99% 500000kg Hebei Chuanghai Biotechnology Co., Ltd
2-Methyl-4-fluoroaniline 4-fluoro-2-methyl-benzenamin 4-Fluoro-2-methylbenzenamine 6-Amino-3-fluorotoluene o-Toluidine, 4-fluoro- 4-FLUORO-O-TOLUIDINE 4-fluoro-2-methylbenzeneamine 4-FLUORO-2-METHYLANILINE 2-AMINO-5-FLUOROTOLUENE 3-FLUORO-6-AMINOTOLUENE 4-fluorotoluidine 4-Fluoro-2-methylaniline 97% 4-Fluoro-2-methylaniline97% 2-Amino-5-fluorotoluene, 4-Fluoro-o-toluidine 2-Fluoro-o-toluidine Benzenamine, 4-fluoro-2-methyl- 4-Fluoro-2-methylaniline,99+% 4-Fluoro-2-methylani 4-Fluoro-2-Methylaniline, 97% 5GR 4-fluoro-2-MethylphenylaMine 4-Fluoro-2-methylaniline> 4-Fluoro-2-methylaniline ISO 9001:2015 REACH 4-Fluoro-2-methylaniline, 97% (Custom 452-71-1 453-71-1 FC6H3NH2CH3 C7 Building Blocks Amines Organic Building Blocks Nitrogen Compounds Anilines, Aromatic Amines and Nitro Compounds Amines Phenyls & Phenyl-Het Halogen toluene Miscellaneous Phenyls & Phenyl-Het Fluorin-contained toluene series Aniline series