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CAS RN 42831-50-5

CH3ONOO

CAS RN 42831-50-5

IUPAC Name: 5-methyl-1,2-oxazole-4-carboxylate
Synonyms: 5-methyl-1,2-oxazole-4-carboxylate
Molecular Weight (g/mol): 126.09
Molecular Formula: C5H4NO3
InChi Key: VQBXUKGMJCPBMF-UHFFFAOYSA-M
SMILES: CC1=C(C=NO1)C([O-])=O
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1

Leflunomide EP Impurity D, Mikromol™

Discover Mikromol - your trusted source for high-quality pharmaceutical reference standards. Supporting accurate, compliant analysis with ISO 17034-accredited materials designed for confidence in every result.

Shipping Condition Room Temperature
CAS 42831-50-5
Molecular Weight (g/mol) 127.1
InChI Formula InChI=1S/C5H5NO3/c1-3-4(5(7)8)2-6-9-3/h2H,1H3,(H,7,8)
Chemical Name or Material 5-Methylisoxazole-4-carboxylic Acid
SMILES Cc1oncc1C(=O)O
Synonym 5-Methylisoxazole-4-carboxylic Acid,Leflunomide Imp. D (EP),Leflunomide Impurity D
Recommended Storage +5°C
Certifications/Compliance ISO 17025
IUPAC Name 5-methyl-1,2-oxazole-4-carboxylic acid
Molecular Formula C5 H5 N O3
Formula Weight 127.0269 g/mol
Analyte or Component Names 5-Methylisoxazole-4-carboxylic Acid
3

5-Methylisoxazole-4-carboxylic acid, 98+%, Thermo Scientific™

CAS: 42831-50-5 Molecular Formula: C5H4NO3 Molecular Weight (g/mol): 126.09 MDL Number: MFCD00955655 InChI Key: VQBXUKGMJCPBMF-UHFFFAOYSA-M Synonym: 5-methylisoxazole-4-carboxylic acid,5-methyl-4-isoxazolecarboxylic acid,unii-bl2q213q2m,4-isoxazolecarboxylic acid, 5-methyl,5-methylisoxazole-4-carboxylicacid,leflunomide impurity d ep,pubchem8652,leflunomide impurity d,acmc-209jr8,ksc235o3b PubChem CID: 1425240 SMILES: CC1=C(C=NO1)C([O-])=O

PubChem CID 1425240
CAS 42831-50-5
Molecular Weight (g/mol) 126.09
MDL Number MFCD00955655
SMILES CC1=C(C=NO1)C([O-])=O
Synonym 5-methylisoxazole-4-carboxylic acid,5-methyl-4-isoxazolecarboxylic acid,unii-bl2q213q2m,4-isoxazolecarboxylic acid, 5-methyl,5-methylisoxazole-4-carboxylicacid,leflunomide impurity d ep,pubchem8652,leflunomide impurity d,acmc-209jr8,ksc235o3b
InChI Key VQBXUKGMJCPBMF-UHFFFAOYSA-M
Molecular Formula C5H4NO3