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3-Amino-5-methoxyisoxazole

CAS No.
32326-25-3
Chemical Name:
3-Amino-5-methoxyisoxazole
Synonyms
5-methoxy-3-isoxazolamine;5-methoxyisoxazol-3-amine;3-Amino-5-methoxisoxazole;3-AMINE-5-METHOXYISOXAZOLE;3-Amino-5-methoxyisoxazole;3-Isoxazolamine, 5-methoxy-;5-Methoxy-isoxazol-3-ylamine;5-Methoxy-1,2-oxazol-3-aMine
CBNumber:
CB3855447
Molecular Formula:
C4H6N2O2
Molecular Weight:
114.1
MDL Number:
MFCD09701967
MOL File:
32326-25-3.mol
MSDS File:
SDS
Last updated:2025-07-24 18:13:46
Product description Number Pack Size Price
5-Methoxyisoxazol-3-amine M268528 50mg $45
3-Amino-5-methoxyisoxazole 97% OR952969 250mg $110
3-Amino-5-methoxyisoxazole 97% OR952969 1g $160
3-Amino-5-methoxyisoxazole 97% OR952969 5g $465
3-AMINO-5-METHOXYISOXAZOLE 95.00% CHM0382407 5MG $495.52
More product size

3-Amino-5-methoxyisoxazole Properties

Boiling point 282°C
Density 1.243
Flash point 124°C
storage temp. 2-8°C(protect from light)
pka 1.85±0.10(Predicted)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P261-P305+P351+P338
HS Code  2934999090

3-Amino-5-methoxyisoxazole price More Price(15)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TRC M268528 5-Methoxyisoxazol-3-amine 32326-25-3 50mg $45 2021-12-16 Buy
Apolloscientific OR952969 3-Amino-5-methoxyisoxazole 97% 32326-25-3 250mg $110 2021-12-16 Buy
Apolloscientific OR952969 3-Amino-5-methoxyisoxazole 97% 32326-25-3 1g $160 2021-12-16 Buy
Apolloscientific OR952969 3-Amino-5-methoxyisoxazole 97% 32326-25-3 5g $465 2021-12-16 Buy
American Custom Chemicals Corporation CHM0382407 3-AMINO-5-METHOXYISOXAZOLE 95.00% 32326-25-3 5MG $495.52 2021-12-16 Buy
Product number Packaging Price Buy
M268528 50mg $45 Buy
OR952969 250mg $110 Buy
OR952969 1g $160 Buy
OR952969 5g $465 Buy
CHM0382407 5MG $495.52 Buy

3-Amino-5-methoxyisoxazole Chemical Properties,Uses,Production

Uses

5-Methoxyisoxazol-3-amine is a useful reactant in the synthesis of pyrazolidine derivatives and 1-substituted tetrazoles via cyclization of amines.

Synthesis

3,3-Dimethoxy-2-propenenitrile

15732-02-2

3-Amino-5-methoxyisoxazole

32326-25-3

Hydroxylamine hydrochloride (1.55 g, 22.3 mmol) was dissolved in water (3.41 mL) under stirring conditions at room temperature, followed by the slow addition of aqueous 8 N sodium hydroxide (3.35 mL, 26.8 mmol). The reaction system was warmed up to 45 °C and a methanol (5.50 mL) solution of 3,3-dimethoxyacrylonitrile (2.27 g, 20.1 mmol) was added dropwise at this temperature for 30 min. After the dropwise addition, the reaction was kept at 45 °C with continued stirring for 1 hour. After confirming the complete consumption of 3,3-dimethoxyacrylonitrile by TLC monitoring, 8 N aqueous sodium hydroxide solution (1.25 mL, 10.1 mmol) was added to the reaction system and the temperature was raised to 60 °C and the reaction continued to be stirred for 6 hours. Upon completion of the reaction, the reaction mixture was concentrated under reduced pressure at 60 °C and 19 mmHg until the inorganic salt began to precipitate. The concentrated product was extracted with ethyl acetate (5 mL × 3), and the organic phases were combined and dried over anhydrous sodium sulfate. The dried organic phase was concentrated under reduced pressure and the residue was further dried under reduced pressure to give white crystals of 3-amino-5-methoxyisoxazole (1.63 g, 70.6% yield). The melting point of the product was 82-83 °C (hexane-ethyl acetate recrystallization). NMR hydrogen spectrum (CDCl3) data: δ 3.93 (5H, broad peak, CH3 + NH2), 4.81 (1H, single peak, H-4); NMR hydrogen spectrum (CDCl3 + D2O) data: δ 3.93 (3H, single peak, CH3), 4.83 (1H, single peak, H-4). Infrared spectra (CHCl3) major absorption peaks: 3840, 1628, 1487 cm-1. Elemental analysis (calculated values, C4H6N2O2): C, 42.11%; H, 5.30%; N, 24.55%. Measured values: C, 41.74%; H, 5.06%; N, 24.35%.

References

[1] Bulletin of the Chemical Society of Japan, 1994, vol. 67, # 6, p. 1701 - 1707
[2] Patent: US5585494, 1996, A

3-Amino-5-methoxyisoxazole Preparation Products And Raw materials

Global( 75)Suppliers
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View Lastest Price from 3-Amino-5-methoxyisoxazole manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
3-Amino-5-methoxyisoxazole pictures 2019-09-05 3-Amino-5-methoxyisoxazole
32326-25-3
US $1.80-3.60 / KG 1KG 99% 88KG Career Henan Chemical Co
3-Amino-5-methoxyisoxazole 5-methoxyisoxazol-3-amine 3-AMINE-5-METHOXYISOXAZOLE 3-Amino-5-methoxisoxazole 5-Methoxy-1,2-oxazol-3-aMine 5-Methoxy-isoxazol-3-ylamine 5-methoxy-3-isoxazolamine 3-Isoxazolamine, 5-methoxy- 32326-25-3