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3-(2,6-Dichlorophenyl)-5-methylisoxazole-4-carboxylic acid

3-(2,6-Dichlorophenyl)-5-methylisoxazole-4-carboxylic acid structure

CAS No.: 3919-76-4

Chemical Name:: 3-(2,6-Dichlorophenyl)-5-methylisoxazole-4-carboxylic acid

Synonyms: RARECHEM AL BO 1567;Dicloxacillin Impurity D;(2S)-CIS-(+)-HYDROXY LACTUM;Dicloxacillin EP Impurity D;3-(2,6-dichlorophenyl)-5-methy;Dicloxacillin Sodium impurity D;Dicloxacillin sodium EP Impurity D;4-Carboxy-3-(2,6-dichlorophenyl)-5-methyl-1,2-oxazole;6-Dichlorophenyl)-5-Methylisoxazole-4-carboxylic acid;Dicloxacillin Impurity 4(Dicloxacillin EP Impurity D)

CBNumber:: CB3273849

Molecular Formula:: C11H7Cl2NO3

Molecular Weight:: 272.08

MDL Number:: MFCD00051658

MOL File:: 3919-76-4.mol

MSDS File:: SDS

Last updated:2025-07-04 15:07:36

Product description	Number	Pack Size	Price
Dicloxacillin Related Compound D United States Pharmacopeia (USP) Reference Standard	1189053	15mg	$1200
3-(2,6-Dichlorophenyl)-5-methyl-4-isoxazolylcarboxylicAcid	D435975	25g	$450
3-(2,6-DICHLOROPHENYL)-5-METHYLISOXAZOLE-4-CARBOXYLIC ACID 95.00%	HCH0020262	1G	$721.57
3-(2,6-DICHLOROPHENYL)-5-METHYLISOXAZOLE-4-CARBOXYLIC ACID 95.00%	HCH0020262	2.5G	$983.88
3-(2,6-DICHLOROPHENYL)-5-METHYLISOXAZOLE-4-CARBOXYLIC ACID 95.00%	HCH0020262	5G	$1168.42
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3-(2,6-Dichlorophenyl)-5-methylisoxazole-4-carboxylic acid Properties

Melting point	221 °C
storage temp.	2-8°C
solubility	DMSO (Slightly), Methanol (Slightly)
form	Solid
color	Pale Yellow
BRN	806524
InChI	InChI=1S/C11H7Cl2NO3/c1-5-8(11(15)16)10(14-17-5)9-6(12)3-2-4-7(9)13/h2-4H,1H3,(H,15,16)
InChIKey	WQXUUMUOERZZAE-UHFFFAOYSA-N
SMILES	O1C(C)=C(C(O)=O)C(C2=C(Cl)C=CC=C2Cl)=N1
CAS DataBase Reference	3919-76-4(CAS DataBase Reference)
FDA UNII	GMQ99QP4XQ
EPA Substance Registry System	4-Isoxazolecarboxylic acid, 3-(2,6-dichlorophenyl)-5-methyl- (3919-76-4)
UNSPSC Code	41116107
NACRES	NA.24

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H302

Precautionary statements

P264-P270-P301+P312a-P330-P501a

Hazard Codes

Risk Statements

36/37/38-22

Safety Statements

22-36/37-36/37/39-26

Hazard Note

Harmful

TSCA

Yes

HS Code

2935909550

NFPA 704

	1
2		0

3-(2,6-Dichlorophenyl)-5-methylisoxazole-4-carboxylic acid price More Price(25)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	1189053	Dicloxacillin Related Compound D United States Pharmacopeia (USP) Reference Standard	3919-76-4	15mg	$1200	2025-07-31	Buy
TRC	D435975	3-(2,6-Dichlorophenyl)-5-methyl-4-isoxazolylcarboxylicAcid	3919-76-4	25g	$450	2021-12-16	Buy
American Custom Chemicals Corporation	HCH0020262	3-(2,6-DICHLOROPHENYL)-5-METHYLISOXAZOLE-4-CARBOXYLIC ACID 95.00%	3919-76-4	1G	$721.57	2021-12-16	Buy
American Custom Chemicals Corporation	HCH0020262	3-(2,6-DICHLOROPHENYL)-5-METHYLISOXAZOLE-4-CARBOXYLIC ACID 95.00%	3919-76-4	2.5G	$983.88	2021-12-16	Buy
American Custom Chemicals Corporation	HCH0020262	3-(2,6-DICHLOROPHENYL)-5-METHYLISOXAZOLE-4-CARBOXYLIC ACID 95.00%	3919-76-4	5G	$1168.42	2021-12-16	Buy

Product number	Packaging	Price	Buy
1189053	15mg	$1200	Buy
D435975	25g	$450	Buy
HCH0020262	1G	$721.57	Buy
HCH0020262	2.5G	$983.88	Buy
HCH0020262	5G	$1168.42	Buy

3-(2,6-Dichlorophenyl)-5-methylisoxazole-4-carboxylic acid Chemical Properties,Uses,Production

Chemical Properties

3-(2,6-Dichlorophenyl)-5-methylisoxazole-4-carboxylic acid is White to creams oli

Uses

3-(2,6-Dichlorophenyl)-5-methylisoxazole-4-carboxylic acid is used in the preparation of isoxazolyl penicillin derivatives.

Uses

3-(2,6-Dichlorophenyl)-5-methyl-4-isoxazolylcarboxylic Acid (Dicloxacillin EP Impurity D) is used in the preparation of isoxazolyl penicillin derivatives.

3-(2,6-Dichlorophenyl)-5-methylisoxazole-4-carboxylic acid Preparation Products And Raw materials

Raw materials

BENZAL CHLORIDE Acetoxyacetic acid Hydroxylamine hydrochloride Ethyl 5-methylisoxazole-4-carboxylate

Preparation Products

3-(2,6-Dichlorophenyl)-5-methylisoxazole-4-carbonyl chloride [3-(2,6-DICHLOROPHENYL)-5-METHYLISOXAZOL-4-YL]METHANOL

3-(2,6-Dichlorophenyl)-5-methylisoxazole-4-carboxylic acid Suppliers

Global( 132)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Standardpharm Co. Ltd.	86-714-3992388	overseasales1@yongstandards.com	United States	14332	58
Alchem Pharmtech,Inc.	8485655694	sales@alchempharmtech.com	United States	63687	58
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49975	58
career henan chemical co	+86-0371-86658258 +8613203830695	factory@coreychem.com	China	29798	58
Fuxin Pharmaceutical	+86-021-021-50872116 +8613122107989	contact@fuxinpharm.com	China	10035	58
SIMAGCHEM CORP	+86-5922680277 +86-13806087780	sale@simagchem.com	China	17346	58
Finetech Industry Limited	+86-27-8746-5837 +8619945049750	info@finetechnology-ind.com	China	9629	58
Dayang Chem (Hangzhou) Co.,Ltd.	+86-0571-88938639 +8617705817739	info@dycnchem.com	China	52846	58
Labnetwork lnc.	+86-27-50766799 +8618062016861	contact@labnetwork.com	China	19987	58
Hebei Fengjia New Material Co., Ltd	+86-0311-87836622 +86-18712993135	sales01@tairunfaz.com	China	8051	58

Supplier	Advantage
Standardpharm Co. Ltd.	58
Alchem Pharmtech,Inc.	58
CONIER CHEM AND PHARMA LIMITED	58
career henan chemical co	58
Fuxin Pharmaceutical	58
SIMAGCHEM CORP	58
Finetech Industry Limited	58
Dayang Chem (Hangzhou) Co.,Ltd.	58
Labnetwork lnc.	58
Hebei Fengjia New Material Co., Ltd	58

View Lastest Price from 3-(2,6-Dichlorophenyl)-5-methylisoxazole-4-carboxylic acid manufacturers

Image	Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
	2020-01-03	3-(2,6-Dichlorophenyl)-5-methylisoxazole-4-carboxylic acid 3919-76-4	US $6.60 / KG	1KG	97%-99%	1kg -1000kg	Career Henan Chemical Co

3-(2,6-Dichlorophenyl)-5-methylisoxazole-4-carboxylic acid
3919-76-4
US $6.60 / KG
97%-99%
Career Henan Chemical Co

3919-76-4(3-(2,6-Dichlorophenyl)-5-methylisoxazole-4-carboxylic acid)Related Search:

6-Aminopenicillanic acid Dicloxacillin EP Impurity B Dicloxacillin sodium Dicloxacillin Sodium impurity A N-[[3-(2,6-Dichlorophenyl)-5-Methyl-4-isoxazolyl]carbonyl]glycine

[3-(2,6-Dichlorophenyl)-5-methyl-4-isoxazolyl]carbonyl N3-[N-[[3-(2,6-Dichlorophenyl)-5-methyl-4-isoxazolyl]carbonyl]glycinyl]penicilloic Acid 3-(2,6-Dichlorophenyl)-5-methylisoxazole-4-carboxylic acid 3-(2,6-Dichlorophenyl)-5-methylisoxazole-4-carboxylic acid chloride Oxazole-4-carboxylic acid Isoxazole

4-Isoxazolecarboxylic acid ETHYL 3-(2,6-DICHLORO-PHENYL)-5-METHYL-ISOXAZOLE-4-CARBOXYLATE METHYL 3-(2,6-DICHLOROPHENYL)-5-METHYLISOXAZOLE-4-CARBOXYLATE METHYL 5-[2-(4-CHLOROANILINO)VINYL]-3-(2,6-DICHLOROPHENYL)-4-ISOXAZOLECARBOXYLATE (2,6-DICHLORO-4-PYRIDYL)METHYL 3-(2,6-DICHLOROPHENYL)-5-METHYL-4-ISOXAZOLECARBOXYLATE

METHYL 3-(2,6-DICHLOROPHENYL)-5-[1-(2,4-DICHLOROPHENYL)-3-(TRIFLUOROMETHYL)-1H-PYRAZOL-4-YL]-4-ISOXAZOLECARBOXYLATE 3-(2,6-DICHLOROPHENYL)-5-ETHYLISOXAZOLE-4-CARBOXYLIC ACID METHYL 3-(2,6-DICHLOROPHENYL)-5-[2-(DIMETHYLAMINO)-1-(2,2,2-TRIFLUOROACETYL)VINYL]-4-ISOXAZOLECARBOXYLATE

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3-(2,6-DICHLOROPHENYL)-5-METHYLISOXAZOLE-4-CARBOXYLIC ACID 5-METHYL-3-(2',6'-DICHLOROPHENYL)-4-ISOXAZOLECARBOXYLIC ACID RARECHEM AL BO 1567 3-(2,6-dichlorophenyl)-5-methyl-4-isoxazolecarboxylicaci 3-(2,6-DICHLOROPHENYL)-5-METHYL-OXAZOLE-4-CARBOXYLIC ACID 3-(2,6-Dichlorophenyl)-5-Methyllisoxazole-4-CarboxylicAcid 3-(2,6-dichlorophenyl)-5-methy 3-(2,6-DICHLOROPHENYL)-5-METHYLISOXAZOLE-4-CARBOXYLIC ACID 98+% 6-Dichlorophenyl)-5-Methylisoxazole-4-carboxylic acid 4-Carboxy-3-(2,6-dichlorophenyl)-5-methyl-1,2-oxazole 3-(2,6-Dichlorophenyl)-5-Mehyl Isoxazole-4-carboxylic Acid (DCMIC Acid) 3-(2,6-Dichlorophenyl)-5-Methyl-4-isoxazolylcarboxylic Acid 5-Methyl-3-(2,6-dichlorophenyl)isoxazole-4-carboxylic Acid 4-Carboxy-3-(2,6-dichlorophenyl)-5-methyl-1,2-oxazole, 3-(2,6-Dichlorophenyl)-5-methyl-1,2-oxazole-4-carboxylic acid Dicloxacillin Impurity D (2S)-CIS-(+)-HYDROXY LACTUM Dicloxacillin EP Impurity D Dicloxacillin Sodium impurity D Dicloxacillin Impurity 4(Dicloxacillin EP Impurity D) 4-Isoxazolecarboxylic acid, 3-(2,6-dichlorophenyl)-5-methyl- 3-(2,6-dichlorophenyl)-5-methyl-1,2-oxazole-4-carboxylic acid Dicloxacillin sodium EP Impurity D 3919-76-4 3919-75-4 3919-74-4 C11H7Cl2NO3 Oxazole&Isoxazole