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2-Methoxy-5-fluoro-4-aminopyrimidine

CAS No.
1993-63-1
Chemical Name:
2-Methoxy-5-fluoro-4-aminopyrimidine
Synonyms
5-Fluoro-2-MethoxypyriMidin-4-aMine;5-Fluoro-2-methoxy-4-pyrimidinamine;4-AMINO-5-FLUORO-2-METHOXYPYRIMIDINE;2-Methoxy-5-fluoro-4-aminopyrimidine;4-Pyrimidinamine, 5-fluoro-2-methoxy;5-Fluoro-2-methoxy-pyrimidin-4-ylamine;4-Amino-5-fluoro-2-methoxypyrimidine >4-Pyrimidinamine, 5-fluoro-2-methoxy- (9CI);2-Methoxy-5-fluoro-4-aminopyrimidine ISO 9001:2015 REACH;2-methoxy-5-fluoro-4-aminopyrimidine (intermediate of flucytosine)
CBNumber:
CB1946996
Molecular Formula:
C5H6FN3O
Molecular Weight:
143.12
MDL Number:
MFCD09264289
MOL File:
1993-63-1.mol
MSDS File:
SDS
Last updated:2026-08-28 09:47:24

2-Methoxy-5-fluoro-4-aminopyrimidine Properties

Melting point 193 °C
Boiling point 278.9±43.0 °C(Predicted)
Density 1.345±0.06 g/cm3(Predicted)
storage temp. Keep in dark place,Inert atmosphere,Room temperature
form powder to crystal
pka 3.63±0.10(Predicted)
color White to Almost white
InChI InChI=1S/C5H6FN3O/c1-10-5-8-2-3(6)4(7)9-5/h2H,1H3,(H2,7,8,9)
InChIKey BYALTIIVASWNSY-UHFFFAOYSA-N
SMILES C1(OC)=NC=C(F)C(N)=N1
CAS DataBase Reference 1993-63-1

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319
Precautionary statements  P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313
HS Code  2933599590
NFPA 704
0
1 0

2-Methoxy-5-fluoro-4-aminopyrimidine price More Price(28)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TCI Chemical A2125 4-Amino-5-fluoro-2-methoxypyrimidine >99.0%(T) 1993-63-1 5g $287 2026-04-30 Buy
Apolloscientific PC906580 4-Amino-5-fluoro-2-methoxypyrimidine >98% 1993-63-1 5g $21 2026-06-04 Buy
Apolloscientific PC906580 4-Amino-5-fluoro-2-methoxypyrimidine >98% 1993-63-1 25g $24 2026-06-04 Buy
Apolloscientific PC906580 4-Amino-5-fluoro-2-methoxypyrimidine >98% 1993-63-1 100g $90 2026-06-04 Buy
Apolloscientific PC906580 4-Amino-5-fluoro-2-methoxypyrimidine >98% 1993-63-1 500g $444 2026-06-04 Buy
Product number Packaging Price Buy
A2125 5g $287 Buy
PC906580 5g $21 Buy
PC906580 25g $24 Buy
PC906580 100g $90 Buy
PC906580 500g $444 Buy

2-Methoxy-5-fluoro-4-aminopyrimidine Chemical Properties, Uses, Production

Uses

2-Methoxy-5-fluoro-4-aminopyrimidine is an intermediate of fluorocytosine.

Synthesis

4-CHLORO-5-FLUORO-2-METHOXYPYRIMIDINE

1801-06-5

2-Methoxy-5-fluoro-4-aminopyrimidine

1993-63-1

General procedure for the synthesis of 5-fluoro-2-methoxy-4-fluoropyrimidinamine using 2-methoxy-4-chloro-5-fluoropyrimidine as starting material: 32.5 g of 2-methoxy-4-chloro-5-fluoropyrimidine (compound of formula III) was added to 170 g of a 10 wt% solution of isopropanol in ammonia, heated to 40-60 °C, and the reaction was stirred for 3-5 hours. After completion of the reaction, it was naturally cooled to room temperature and the solid product was collected by filtration. The solid was washed with isopropanol and dried to give 27.2 g of 5-fluoro-2-methoxy-4-pyrimidinamine (compound of formula II, white solid) in 95.0% molar yield and 99.0% HPLC purity.

References

[1] Patent: CN105272922, 2016, A. Location in patent: Paragraph 0038; 0039; 0040

1801-06-5
1993-63-1
Synthesis of 2-Methoxy-5-fluoro-4-aminopyrimidine from 4-Chloro-5-fluoro-2-methoxypyrimidine

2-Methoxy-5-fluoro-4-aminopyrimidine Preparation Products And Raw materials

Global Suppliers ( 108)
Supplier Tel Email Country ProdList Advantage
Nanjing Easichem Co. ltd. 18061688856 easichem@126.com China 477 58
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
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
Tianjin heowns Biochemical Technology Co., Ltd. 400 638 7771 sales@heowns.com China 14412 57
Jiangsu Aikon Biopharmaceutical R&D co.,Ltd. 025-66113011 13913916777 cfzhang@aikonchem.com China 19902 55
TOKYO CHEMICAL INDUSTRY CO., LTD. 03-36680489 Sales-JP@TCIchemicals.com Japan 28364 80
TCI Europe 320-37350700 sales@tcieurope.eu Europe 23654 75
TCI AMERICA 800-4238616 sales@tciamerica.com Americas 23636 75

View Latest Price from 2-Methoxy-5-fluoro-4-aminopyrimidine manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
2-Methoxy-5-fluoro-4-aminopyrimidine pictures 2025-06-25 2-Methoxy-5-fluoro-4-aminopyrimidine
1993-63-1
$1.10 1g 99.0% min 100 tons min Shaanxi Dideu Medichem Co. Ltd
2-Methoxy-5-fluoro-4-aminopyrimidine pictures 2025-06-20 2-Methoxy-5-fluoro-4-aminopyrimidine
1993-63-1
$1.00 1kg 98.00% 20tons Hebei Yanxi Chemical Co., Ltd.

2-Methoxy-5-fluoro-4-aminopyrimidine Spectrum

2-Methoxy-5-fluoro-4-aminopyrimidine 4-Pyrimidinamine, 5-fluoro-2-methoxy- (9CI) 4-AMINO-5-FLUORO-2-METHOXYPYRIMIDINE 2-methoxy-5-fluoro-4-aminopyrimidine (intermediate of flucytosine) 5-Fluoro-2-methoxy-4-pyrimidinamine 5-Fluoro-2-MethoxypyriMidin-4-aMine 5-Fluoro-2-methoxy-pyrimidin-4-ylamine 4-Pyrimidinamine, 5-fluoro-2-methoxy 4-Amino-5-fluoro-2-methoxypyrimidine > 2-Methoxy-5-fluoro-4-aminopyrimidine ISO 9001:2015 REACH 1993-63-1 C5H6N3OF (intermediate of flucytosine) PYRIMIDINE