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5-Methylisoxazole-4-carboxylic Acid

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Formula: C5H5NO3
CAS: 42831-50-5

Identification

Structural Formula
5-Methylisoxazole-4-carboxylic Acid
CAS:
42831-50-5
EINECS:
Molecular Formula:
C5H5NO3
MDL:
MFCD00955655
SMILES:
CC1=C(C=NO1)C(O)=O
Synonym:
timtec-bb sbb005909 ; 5-methylisoxazole-4-carboxylic acid ; leflunomide impurity d ; 5-methyl-4-isoxasolecarboxylic acid ; 5-methyl-isoxazol-4-carboxylic acid ; 5-methylisoxazole-4-carboxylic ; methylisoxazole-4-carboxylic ; 4-isoxazolecarboxylic acid,5-methyl ; 5-methyl-4-isoxazolecarboxylic acid ; leflunomide ep impurity d




Suppliers

BLD Pharmatech Ltd
BP18905670
Ambeed, Inc.
A273491
Indofine Chemical Co, Inc.
08-1205
Hangzhou Verychem Science & Technology Co., Ltd.
HVST504025200
Hangzhou Trylead Chemical Technology Co., Ltd.
HTCT483024150
Wanko Chemical Co., Ltd.
WC25207560
Carbone Scientific Co., Ltd.
CS29408820
AK Scientific, Inc.
AS19955985
DSL Chemicals (Shanghai) Co., Ltd.
C005467
Simagchem Corporation
SC22056615
Santa Cruz Biotechnology, Inc.
sc-207044
Santa Cruz Biotechnology, Inc.
207044
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CAS equal suppliers

Leflunomide EP Impurity D
Salsbury Chemicals, Inc.
SC24007200
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Simagchem Corporation
SC22056615
5-Methyl-4-isoxazolecarboxylic acid
Finetech Industry Limited
FIL262510500
5-Methyl-4-isoxazolecarboxylic acid
CM Fine Chemicals
CFC17857140
5-Methyl-4-isoxazolecarboxylic acid
Chemieliva Pharmaceutical Co., Ltd.
CP367511025
5-Methyl-4-isoxazolecarboxylic acid
Leap Chem Co., Ltd
LC18905670
5-Methyl-4-isoxazolecarboxylic acid
Hangzhou J&H Chemical Co., Ltd.
HJC325513020
5-Methyl-4-isoxazolecarboxylic acid
Zhejiang Hongxin Chemical
ZHC262510500
5-Methyl-4-isoxazolecarboxylic acid
Capot Chemical Co., Ltd.
8652
5-Methyl-4-isoxazolecarboxylic acid
Hefei Hirisun Pharmatech Co., Ltd
HR010981
5-Methyl-4-isoxazolecarboxylic acid
Changzhou Hi-Tech Chemistry Corp
HT-C085
5-Methyl-4-isoxazolecarboxylic acid
Xiamen Hisunny Chemical Co., Ltd.
XHC346513860
5-Methyl-4-isoxazolecarboxylic acid
Dayang Chem (Hangzhou) Co.,Ltd.
DC325513020
5-Methyl-4-isoxazolecarboxylic acid
Autech Industry Co.,Limited
AIC283511340
5-Methyl-4-isoxazolecarboxylic acid
Aecochem Corp.
AC14704410
5-Methyl-4-isoxazolecarboxylic acid
FUDI Chemical Co. Ltd.
FCC23109240
5-Methyl-4-isoxazolecarboxylic acid
Xingrui Industry Co., Limited
XIL304512180
5-Methyl-4-isoxazolecarboxylic acid
Gihi Chemicals Co., Limited
GCL283511340
5-Methyl-4-isoxazolecarboxylic acid
H&Z Industry Co.,Ltd
HIC21008400
5-Methyl-4-isoxazolecarboxylic acid
Hangzhou Cherry Pharmaceutical Technology Co., Ltd.
HCPT535526775
5-Methyl-4-isoxazolecarboxylic acid
Xiamen Equation Chemical Co.,Ltd
XECC336016800
5-Methyl-4-isoxazolecarboxylic acid
Amadis Chemical Company Limited
ACCL325516275
5-Methyl-4-isoxazolecarboxylic acid
Chemlyte Solutions
CS18905670
5-Methylisoxazole-4-carboxylic acid, 98+%
Alfa (A Johnson Matthey Company)
A393611808

Prices & Availability




Data is processed


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Properties for 5-Methylisoxazole-4-carboxylic Acid

Molecular Weight:
127.1 g·mol−1
Melting point:
144-148 °C(lit.)
Solubility:
Acetone, Acetonitrile, DMSO, Water, Methanol
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Hazard Statements

GHS07

GHS03
Harmful
  • Acute toxicity (oral, dermal, inhalation), category 4
  • Skin irritation, categories 2, 3
  • Eye irritation, category 2A
  • Skin sensitization, category 1
  • Specific target organ toxicity following single exposure, category 3
    - Respiratory tract irritation
    - Narcotic effects
  • Not used
  • with the "skull and crossbones" pictogram
  • for skin or eye irritation if:
  • the "corrosion" pictogram also appears
  • the "health hazard" pictogram is used to indicate respiratory sensitization

Safety & Transport Information

Risk Codes:
R10 - Flammable
R36 - Irritating to eyes
R36/37/38 - Irritating to eyes, respiratory system and skin
R37/38 - Irritating to respiratory system and skin
Safety Codes:
S16 - Keep away from sources of ignition - No smoking
S22 - Do not breathe dust
S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
S36 - Wear suitable protective clothing
S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection
Hazard Classes:
irritant
Hazard Symbols:
Xi, F
Hazard symbol F Hazard symbol Xi
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Alternative Distributors of [5-Methylisoxazole-4-carboxylic Acid]

Producers or manufacturers change the product range from time to time. The following companies
have appeared as suppliers in the past / currently not verified

Chembay Co., Ltd. | Molekula GmbH | 3B Scientific Corporation | Hangzhou Think Chemical Co., Ltd. | Hongda Group Limited | Shanghai PI Chemicals Ltd. | Changzhou Sinly Pharmchem Co., Ltd. | TCI Europe NV | Matrix Scientific | Ubichem PLC | Suzhou Rovathin Pharmatech Co., Ltd | Ark Pharm, Inc. | Bepharm Ltd. | Shanghai Hanhong Chemical Co., Ltd. | AOKBIO Co., Ltd. | Jinan Great Chemical Co., Ltd. | 3Way Pharm Inc. | ShangHai Top Descendants Bioscience Co., Ltd | Watson International Ltd | Suzhou Vosun Chemical Co.,Ltd. | Skyrun Industrial Co., Ltd. | Xiamen Hisunny Chemical Co., Ltd.

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