LGC(LaboratoryoftheGovernmentChemist)公司于1842年在英国成立，是集实验室服务、测量标准、标准物质及实验室能 力验证于一体的市场领导者。公司的分支机构包括LGC标准品，LGC法医刑侦科 学，LGC基因组学，LGC科学技术部。LGC提供的标准物质涉及医药、临床与法医、 食品与环境、工业及天然产物等领域。

Carbenicillin Sodium羧苄青霉素钠

MM 0805.00 Carbenicillin Sodium

Carbocisteine羧甲司坦

MM 0236.00 Carbocisteine

MM 0236.01 (S)-Carboxymethyl-L-cysteine

(R/S)-Sulphoxide

MM 0236.02 Lactam of (S)-Carboxymethyl-L-cysteine

MM 0236.03 L-Cysteinesulfinic Acid

Carisoprodol卡利普多

MM 0782.03 Imp. C (EP): 2-Methyl-2-propylpropane-1,3-diol

Carvedilol卡维地洛

MM 0291.00 Carvedilol

MM 0291.02 Imp. B (EP): 1,1'-[[2-(2-Methoxyphenoxy)ethyl]

-nitrilo]bis[3-(9H-carbazol-4-yloxy)propan-2-ol]

MM 0291.03 Imp. C (EP): (2RS)-1-[Benzyl[2-(2-methoxy-

phenoxy)ethyl]amino]-3-(9H-carbazol-4-

yloxy)propan-2-ol

MM 0291.04 Imp. D (Pharmeuropa): Toluene

MM 0291.10 4-(2,3-Epoxypropoxy)carbazole

MM 0291.11 2-(2-Methoxyphenoxy)ethylamine Hydrochloride

Cefaclor 头孢克洛

MM 0326.00 Cefaclor Monohydrate

MM 0253.12 Imp. A (EP): (2R)-2-Amino-2-phenylacetic Acid (D-Phenylglycine)

MM 0253.08 Imp. F (EP): 3-Phenylpyrazin-2-ol

Cefadroxil Monohydrate头孢羟氨苄

MM 0232.09 Imp. A (EP): (2R)-2-Amino-2-(4-hydroxyphenyl)acetic Acid

MM 0811.01 Imp. B (EP): (6R,7R)-7-Amino-3-methyl-8-oxo-

5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic

Acid (7-ADCA; 7-Aminodesacetoxycephalosporanic Acid)

Cefalexin Monohydrate头孢氨苄

MM 0605.00 Cefalexin Monohydrate

MM 0253.12 Imp. A (EP): (2R)-2-Amino-2-phenylacetic Acid

(D-Phenylglycine)

MM 0811.01 Imp. B (EP): (6R,7R)-7-Amino-3-methyl-8-oxo-5-thia-

1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid

(7-Aminodesacetoxycephalosporanic Acid; 7-ADCA)

Cefazolin Sodium头孢唑啉钠

MM 0238.00 Cefazolin Sodium

MM 0238.05 Imp. E (EP): 5-Methyl-1,3,4-thiadiazol-2-thiol (MMTD)

MM 0238.08 Imp. H (EP): (6R,7R)-3-[(Acetyloxy)methyl]-7-amino-8-oxo-

5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid (7-ACA)

Cefetamet盐酸头孢他美

MM 0811.01 7-Aminodesacetoxycephalosporanic Aicd

Cefoperazone Sodium头孢哌酮钠

MM 0853.03 Imp. C (EP): 1-Methyl-1H-tetrazole-5-thiol

MM 0238.08 Imp. E (EP): (6R,7R)-3-[(Acetyloxy)methyl]-7-amino-8-oxo-

5-thia-1-azabicyclo-

[4.2.0]oct-2-ene-2-carboxylic Acid (7-ACA)

Cefradine头孢拉定

MM 0811.01 Imp. A (EP): (6R,7R)-7-Amino-3-methyl-8-oxo-

5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic

Acid (7-Aminodeacetoxycephalosporanic Acid,

7-ADCA)

Celecoxib塞来西布

MM 0344.02 4-[5-[4-(Hydroxymethyl)phenyl]-3-(trifluoromethyl)-1H-pyrazol-

1-yl]-benzenesulfonamide

MM 0344.03 4-[1-[4-(Aminosulfonyl)phenyl]-3-(trifluoromethyl)-1H-pyrazol-

5-yl]benzoic Acid

Celiprolol Hydrochloride盐酸塞利洛尔

MM 0128.00 Celiprolol Hydrochloride

MM 0128.01 Imp. A (EP): 1-[5-Amino-2-[(2RS)-

3-[(1,1-dimethylethyl)amino]-