QUALITY CONTROL CHEMICALS INC. | STANDARD REFERENCE MATERIAL

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Ceftriaxone Impurity 22

QCC Cat No.:

QC062448

CAS No.:

NA

Mol Formula:

C18H18N8O7S3

Mol. Weight:

554.58

7-APRA;Cefprozil EP Impurity F

QCC Cat No.:

QC062661

CAS No.:

107937-01-9

Mol Formula:

C10H12N2O3S

Mol. Weight:

240.28

Cefazolin Tetrazolylacetic acid

QCC Cat No.:

QC062701

CAS No.:

21732-17-2

Mol Formula:

C3H4N4O2

Mol. Weight:

128.09

Cefazolin Tetrazolyl acetamide acetal

QCC Cat No.:

QC062702

CAS No.:

1797135-60-4; 1675245-47-2

Mol Formula:

C5H7N5O2/C5H9N5O3

Mol. Weight:

169.14/187.16

Cefazolin Impurity D

QCC Cat No.:

QC062704

CAS No.:

NA

Mol Formula:

C11H12N6O5S

Mol. Weight:

340.32

Cefazolin Impurity E

QCC Cat No.:

QC062705

CAS No.:

478494-71-2

Mol Formula:

C11H12N6O5S

Mol. Weight:

340.32

Cefazolin EP Impurity C

QCC Cat No.:

QC062708

CAS No.:

56842-77-4

Mol Formula:

C11H12N6O4S

Mol. Weight:

324.32

Cefazolin EP Impurity G

QCC Cat No.:

QC062709

CAS No.:

1172998-53-6

Mol Formula:

C11H10N6O4S

Mol. Weight:

322.30

Cefazolin EP Impurity D

QCC Cat No.:

QC062710

CAS No.:

32510-61-5

Mol Formula:

C13H14N6O6S

Mol. Weight:

382.35

Cefazolin EP Impurity A

QCC Cat No.:

QC062711

CAS No.:

30246-33-4

Mol Formula:

C11H12N4O3S3

Mol. Weight:

344.43

Cefazolin epimer

QCC Cat No.:

QC062713

CAS No.:

NA

Mol Formula:

C14H14N8O4S3

Mol. Weight:

454.51

Cefazolin EP Impurity B

QCC Cat No.:

QC062714

CAS No.:

NA

Mol Formula:

C16H20N4O4S3

Mol. Weight:

428.55

Cefazolin EP Impurity K

QCC Cat No.:

QC062715

CAS No.:

NA

Mol Formula:

C14H15N9O3S3

Mol. Weight:

453.52

Cefazolin Impurity 18

QCC Cat No.:

QC062718

CAS No.:

NA

Mol Formula:

C14H16N8O5S3

Mol. Weight:

472.52

Cefazolin EP Impurity J

QCC Cat No.:

QC062719

CAS No.:

NA

Mol Formula:

C11H12N6O5S

Mol. Weight:

340.32

Cefazolin EP Impurity L

QCC Cat No.:

QC062721

CAS No.:

NA

Mol Formula:

C14H14N8O4S3

Mol. Weight:

454.51

Cefazolin Impurity 22

QCC Cat No.:

QC062722

CAS No.:

NA

Mol Formula:

C14H14N8O4S3

Mol. Weight:

454.51

Cefazolin Impurity 23

QCC Cat No.:

QC062723

CAS No.:

NA

Mol Formula:

C14H14N8O4S3

Mol. Weight:

454.51

Cefazolin Impurity 24

QCC Cat No.:

QC062724

CAS No.:

NA

Mol Formula:

C11H12N6O5S

Mol. Weight:

340.32

Cefazolin EP Impurity I

QCC Cat No.:

QC062725

CAS No.:

NA

Mol Formula:

C14H16N8O5S3

Mol. Weight:

472.52

Cefazolin Impurity 26

QCC Cat No.:

QC062726

CAS No.:

NA

Mol Formula:

C14H16N8O5S3

Mol. Weight:

472.52

Cefazolin Impurity 1

QCC Cat No.:

QC062727

CAS No.:

2416213-67-5

Mol Formula:

C18H20N4O8S2

Mol. Weight:

484.50

Cefazolin EP Impurity E

QCC Cat No.:

QC062728

CAS No.:

29490-19-5

Mol Formula:

C3H4N2S2

Mol. Weight:

132.21

Cefazolin Impurity 29

QCC Cat No.:

QC062729

CAS No.:

NA

Mol Formula:

C14H16N8O5S3

Mol. Weight:

472.52

Cefazolin Impurity 30

QCC Cat No.:

QC062730

CAS No.:

NA

Mol Formula:

C14H19N3O7S

Mol. Weight:

373.38

Cefazolin Impurity 31

QCC Cat No.:

QC062731

CAS No.:

NA

Mol Formula:

C14H13N8NaO5S3

Mol. Weight:

492.49

Cefazolin Impurity 32

QCC Cat No.:

QC062732

CAS No.:

NA

Mol Formula:

C25H24N12O6S6

Mol. Weight:

780.92

Cefazolin Impurity 33

QCC Cat No.:

QC062733

CAS No.:

NA

Mol Formula:

C25H24N12O6S6

Mol. Weight:

780.92

Cefazolin Impurity 34

QCC Cat No.:

QC062734

CAS No.:

NA

Mol Formula:

C25H24N12O6S6

Mol. Weight:

780.92

Cefazolin Impurity 35

QCC Cat No.:

QC062735

CAS No.:

NA

Mol Formula:

C3H6N2OS2 NH3

Mol. Weight:

150.22 17.03