Skip to Content
Merck
All Photos(1)

Documents

H3275

Sigma-Aldrich

3-Hydroxy-5-methylisoxazole

≥90%

Synonym(s):

Hymexazol

Sign Into View Organizational & Contract Pricing


About This Item

Empirical Formula (Hill Notation):
C4H5NO2
CAS Number:
Molecular Weight:
99.09
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Assay

≥90%

storage temp.

2-8°C

SMILES string

CC1=CC(=O)NO1

InChI

1S/C4H5NO2/c1-3-2-4(6)5-7-3/h2H,1H3,(H,5,6)

InChI key

KGVPNLBXJKTABS-UHFFFAOYSA-N

Application

3-Hydroxy-5-methylisoxazole can be used as a reactant to synthesize:
  • 3-Oxoisoxazole-2(3H)-carboxamides by reacting with dimethyl-carbamoyl chloride in the presence of potassium t-butoxide.
  • Hydroxymethyl-2-propen-1-yl-5-methyl-3(2H)-isoxazolone via ring-opening reaction with vinyl oxirane.

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Dam. 1 - Repr. 2 - Skin Sens. 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Yu-Qi Gao et al.
Journal of agricultural and food chemistry, 68(8), 2418-2425 (2020-02-06)
Two biosynthetically related new metabolites, eucalyptacid A (1) and eucalactam B (2), along with six known compounds (3-8), eugenitol (3), cytosporone C (4), 4-hydroxyphenethyl alcohol (5), 1-(4-hydroxyphenyl)ethane-1,2-diol (6), N-(2-hydroxy-2-phenylethyl)acetamide (7), and phomopene (8), were isolated from the solid rice cultures
Ian Mangion et al.
Organic letters, 11(15), 3258-3260 (2009-07-11)
Hydrazines and hydroxylamines have been found to be excellent nucleophiles for the palladium-catalyzed dynamic asymmetric allylic amination of vinyl epoxide, with good yields and enantioselectivities of up to 97% ee. This method is applicable to acyclic and heterocyclic amines and
[An experimental study of carcinogenic activity of bucide and its effects on the reproductive function].
L V Martson' et al.
Gigiena i sanitariia, (4)(4), 53-55 (1991-04-01)
Qiang Zhang et al.
Journal of agricultural and food chemistry, 62(45), 10962-10969 (2014-10-29)
Bioassay-guided fractionation of the fermentation extract of Xylaria sp. XC-16, an endophyte from Toona sinensis led to the isolation of two new cytochalasans cytochalasin Z27, 1, and cytochalasin Z28, 2, along with three known compounds seco-cytochalasin E, 3, and cytochalasin
Yongmei Fan et al.
Pesticide biochemistry and physiology, 147, 139-144 (2018-06-24)
Hymexazol is an efficacious and widely used fungicide. However, its environmental toxicological assessment has not been well documented. It had no report of its toxicity to fish embryo. Fish embryo acute toxicity tests are highly predictive of aquatic embryotoxicity outcome.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service