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3-Amino-5-methylisoxazole

3-Amino-5-methylisoxazole Structure
3-Amino-5-methylisoxazole structure
CAS No.
1072-67-9
Chemical Name:
3-Amino-5-methylisoxazole
Synonyms
5-METHYLISOXAZOL-3-AMINE;5-Methyl-3-isoxazolamine;3-Isoxazolamine,5-methyl-;Sulfamethoxazole impurity C;5-METHYL-ISOXAZOL-3-YLAMINE;NSC 159134;AKOS BBS-00004236;TIMTEC-BB SBB005553;3-Amino-5-methylisox;LABOTEST-BB LT00080632
CBNumber:
CB5397215
Molecular Formula:
C4H6N2O
Molecular Weight:
98.1
MDL Number:
MFCD00003155
MOL File:
1072-67-9.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-06-01 08:58:44
Product description Number Pack Size Price
Sulfamethoxazole Related Compound C Pharmaceutical Secondary Standard; Certified Reference Material PHR2577 100MG $543
3-Amino-5-methylisoxazole ≥97% 232270 50g $206
Sulfamethoxazole Related Compound C United States Pharmacopeia (USP) Reference Standard 1631533 15mg $1390
Sulfamethoxazole Related Compound C certified reference material, pharmaceutical secondary standard PHR3358 30MG $603
3-Amino-5-methylisoxazole >97.0%(GC)(T) A0980 25g $127
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3-Amino-5-methylisoxazole Properties

Melting point 59-61 °C(lit.)
Boiling point 183.6°C (rough estimate)
Density 1.1890 (rough estimate)
refractive index 1.4327 (estimate)
storage temp. 2-8°C
solubility soluble
pka 2.40±0.10(Predicted)
form Solid
color Off-White to Brown
PH 6.0-7.5 (10g/l, H2O, 20℃)
Water Solubility soluble
BRN 108110
InChI 1S/C4H6N2O/c1-3-2-4(5)6-7-3/h2H,1H3,(H2,5,6)
InChIKey FKPXGNGUVSHWQQ-UHFFFAOYSA-N
SMILES Cc1cc(N)no1
CAS DataBase Reference 1072-67-9(CAS DataBase Reference)
FDA UNII G54MJS11L9
NIST Chemistry Reference 3-Isoxazolamine, 5-methyl-(1072-67-9)
EPA Substance Registry System 3-Isoxazolamine, 5-methyl- (1072-67-9)
UNSPSC Code 41116107
NACRES NA.24

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
PPE Eyeshields, Gloves, type N95 (US)
Hazard Codes  Xi-F,Xi,F,Xn
Risk Statements  5-36/37/38-11-36/37/38/5-20/21/22
Safety Statements  22-24/25-47-37/39-26-16-26/37/39/47-36
WGK Germany  3
F  4.6
Hazard Note  Irritant
TSCA  TSCA listed
HS Code  29349990
Storage Class 11 - Combustible Solids
NFPA 704
1
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3-Amino-5-methylisoxazole price More Price(47)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich PHR2577 Sulfamethoxazole Related Compound C Pharmaceutical Secondary Standard; Certified Reference Material 1072-67-9 100MG $543 2026-04-30 Buy
Sigma-Aldrich 232270 3-Amino-5-methylisoxazole ≥97% 1072-67-9 50g $206 2026-04-30 Buy
Sigma-Aldrich 1631533 Sulfamethoxazole Related Compound C United States Pharmacopeia (USP) Reference Standard 1072-67-9 15mg $1390 2026-04-30 Buy
Sigma-Aldrich PHR3358 Sulfamethoxazole Related Compound C certified reference material, pharmaceutical secondary standard 1072-67-9 30MG $603 2022-05-15 Buy
TCI Chemical A0980 3-Amino-5-methylisoxazole >97.0%(GC)(T) 1072-67-9 25g $127 2026-04-30 Buy
Product number Packaging Price Buy
PHR2577 100MG $543 Buy
232270 50g $206 Buy
1631533 15mg $1390 Buy
PHR3358 30MG $603 Buy
A0980 25g $127 Buy

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

Chemical Properties

yellow crystalline powder, crystals and chunks

Uses

Sulfamethoxazole (SMX) (S699086) Impurity. A degradation product in water by a bioluminescence method during application of the electro-Fenton treatment.

Uses

3-Amino-5-methylisoxazole was used in synthesis of:

  • naphtho[1,2-e][1,3]oxazines
  • series of 1-aryl-4-methyl-3,6-bis-(5-methylisoxazol-3-yl)-2-thioxo-2,3,6,10b-tetrahydro-1H-pyrimido[5,4-c]quinolin-5-ones, having potential mosquito larvicidal activity
  • hydroxylamines of sulfadiazine and sulfamethoxazole

General Description

3-Amino-5-methylisoxazole is the major intermediate formed during sulfamethoxazole biodegradation by Pseudomonas psychrophila strain HA-4. It is the intermediate formed during the photocatalytic degradation of sulfamethoxazole (SMX).

3-Amino-5-methylisoxazole synthesis

4368-06-3
1072-67-9
Synthesis of 3-Amino-5-methylisoxazole from 3-HYDROXYBUTYRONITRILE

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

Raw materials

Sodium hypochlorite Ethanol Hydrazine hydrate Sodium nitrite Tetrahydrofuran
Ethyl acetate Hydrochloric acid Acetic acid Methyl vinyl ketone 5-Methylisoxazole
Potassium phthalimide 1,2-Dichlorobenzene

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Preparation Products

naphthol AS-RS 2-Butenoic acid, 4-[(5-methyl-3-isoxazolyl)amino]-4-oxo-, (Z)- (9CI) 2-([(5-METHYL-3-ISOXAZOLYL)IMINO]METHYL)BENZENOL Formamide, N-(5-methyl-3-isoxazolyl)- ethyl [(5-methylisoxazol-3-yl)amino](oxo)acetate
N-(5-methyl-3-isoxazolyl)benzenesulfonamide

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3-Amino-5-methylisoxazole Suppliers

Global( 337)Suppliers
Supplier Tel Email Country ProdList Advantage
Shaanxi Dideu Medichem Co. Ltd 		+8617392709771 1097@dideu.com China 3996 58
Capot Chemical Co.,Ltd. 		+8613336195806 sales@capot.com China 29640 60
Henan Tianfu Chemical Co.,Ltd. 		+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21587 55
ATK CHEMICAL COMPANY LIMITED 		+undefined-21-51877795 ivan@atkchemical.com China 33024 60
Jinan Carbotang Biotech Co.,Ltd. 		+8615866703830 figo.gao@foxmail.com China 8497 58
Accela ChemBio Inc. 		+1-858-6993322 info@accelachem.com United States 21193 58
Standardpharm Co. Ltd. 		86-714-3992388 overseasales1@yongstandards.com United States 14332 58
CONIER CHEM AND PHARMA LIMITED 		+8618523575427 sales@conier.com China 49979 58
career henan chemical co 		+86-0371-86658258 +8613203830695 factory@coreychem.com China 29792 58
Antai Fine Chemical Technology Co.,Limited 		18503026267 info@antaichem.com CHINA 9636 58
Supplier Advantage
Shaanxi Dideu Medichem Co. Ltd 		58
Capot Chemical Co.,Ltd. 		60
Henan Tianfu Chemical Co.,Ltd. 		55
ATK CHEMICAL COMPANY LIMITED 		60
Jinan Carbotang Biotech Co.,Ltd. 		58
Accela ChemBio Inc. 		58
Standardpharm Co. Ltd. 		58
CONIER CHEM AND PHARMA LIMITED 		58
career henan chemical co 		58
Antai Fine Chemical Technology Co.,Limited 		58

View Lastest Price from 3-Amino-5-methylisoxazole manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
3-Amino-5-methylisoxazole pictures 2026-06-01 3-Amino-5-methylisoxazole
1072-67-9
 1kg 99%min 20tons HANGZHOU HAILAN CHEMICAL CO.,LTD.
3-Amino-5-methylisoxazole pictures 2026-05-31 3-Amino-5-methylisoxazole
1072-67-9
 $29.00 98.36% 10g TargetMol Chemicals Inc.
3-Amino-5-methylisoxazole pictures 2026-05-30 3-Amino-5-methylisoxazole
1072-67-9
 $29.00 98.36% 10g TargetMol Chemicals Inc.

3-Amino-5-methylisoxazole Spectrum

3-Amino-5-methylisoxazole(1072-67-9)MS3-Amino-5-methylisoxazole(1072-67-9)1HNMR3-Amino-5-methylisoxazole(1072-67-9)IR13-Amino-5-methylisoxazole(1072-67-9)IR23-Amino-5-methylisoxazole(1072-67-9)Raman

1072-67-9(3-Amino-5-methylisoxazole)Related Search:

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5-Methyl-1H-benzotriazole Bis(2-ethylhexyl)amine N,N-Dimethyl-1,4-phenylenediamine 6-Aminocaproic acid 2-Aminophenol
Tris(hydroxymethyl)aminomethane Triethylamine Glycine Aminoethoxyvinyl glycine hydrochloride 5-methylisoxazol-3-amine
3-AMINO-4-BROMO-5-METHYLISOXAZOLE ISOXICAM 3-Amino-5-tert-butylisoxazole

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3-Methyl-5-aminoisoxazole 5-Methyl-3-aminoisoxazole 5-methyl-3-isoxazolamin 5-Methyl-3-isoxazolamine Sulfamethoxazole Impurity 3（Sulfamethoxazole EP Impurity C） 5-Methylisoxazol-3-amine, 5-Methyl-1,2-oxazol-3-amine 5-ethylisoxazol-3-aMine 3-AMino-5-Methylisoxazole, 98+% 5GR NSC 159134 3-AMINO-5-METHYLISOXAZOL FOR SYNTHESIS SulfaMethoxazole Related CoMpound C Isoxazole, 3-amino-5-methyl- (8CI) 3-amino-5-methylisooxzole 3-Amino-5-methylisoxazole >=97% Sulfamethoxazole impurity C (EP) 5-Methyl-3-iso-xazolamine LABOTEST-BB LT00080632 Isoxazole, 3-amino-5-methyl- TIMTEC-BB SBB005553 AKOS BBS-00004236 3-AMINO-5-METHYLISOXAZOL 3-AMINO-5-METHYLISOXAZOLE 3-AMINO-5-METHYLISOXAZOLE, 98+% 3-Amino-5-Methyl Isooxazole 5-Methyl-3-isoxazolylamine 3-Amino-5-methylisox 3-AMINO-5-METHYLLISOXAZOLE 3-Amino-5-methylisoxazole > Sulfamethoxazole impurity C Sulfamethoxazole EP Impurity C/ Sulfamethoxazole Related Compound C Sulfamethoxazole Related Compound C (5-methylisoxazol-3-amine) (1631533) 3-Amino-5-methylisoxazole 1072-67-9 Sulfamethoxazole USP Related Compound C 3-Amino-5-methylisoxazole, 10 mM in DMSO 3-Isoxazolamine,5-methyl- 5-METHYL-ISOXAZOL-3-YLAMINE 5-METHYLISOXAZOL-3-AMINE 1072-67-9 AMINO Building Blocks Isoxazoles Heterocyclic Building Blocks Amines, Heterocycles, Impurities, Pharmaceuticals, Intermediates & Fine Chemicals, Sulfur & Selenium Compounds Building Blocks Heterocyclic Building Blocks Isoxazoles Amines Heterocycles Impurities Intermediates & Fine Chemicals Pharmaceuticals Sulfur & Selenium Compounds Oxazole&Isoxazole