QUALITY CONTROL CHEMICALS INC. | STANDARD REFERENCE MATERIAL

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Letrozole Impurity 35

QCC Cat No.:

QL201535

CAS No.:

NA

Mol Formula:

C18H14ClN5

Mol. Weight:

335.79

Letrozole Impurity 36

QCC Cat No.:

QL201536

CAS No.:

874-86-2

Mol Formula:

C8H6ClN

Mol. Weight:

151.59

Letrozole Impurity 37

QCC Cat No.:

QL201537

CAS No.:

2451658-74-3

Mol Formula:

C10H7ClN4

Mol. Weight:

218.64

Letrozole Impurity 38

QCC Cat No.:

QL201538

CAS No.:

74231-65-5

Mol Formula:

C8H5Cl2N

Mol. Weight:

186.04

Letrozole Impurity 39

QCC Cat No.:

QL201539

CAS No.:

112809-27-5

Mol Formula:

C10H8N4

Mol. Weight:

184.20

Letrozole Impurity 40

QCC Cat No.:

QL201540

CAS No.:

NA

Mol Formula:

C18H14N4O2

Mol. Weight:

318.33

Letrozole Impurity 41

QCC Cat No.:

QL201541

CAS No.:

84545-14-2

Mol Formula:

C8H8ClNO

Mol. Weight:

169.61

Letrozole Impurity 42

QCC Cat No.:

QL201542

CAS No.:

876728-37-9

Mol Formula:

C10H8N4

Mol. Weight:

184.20

Letrozole Impurity 43

QCC Cat No.:

QL201543

CAS No.:

876316-41-5

Mol Formula:

C10H8N4

Mol. Weight:

184.20

Letrozole Impurity 44

QCC Cat No.:

QL201544

CAS No.:

NA

Mol Formula:

C10H10N4O

Mol. Weight:

202.21

Letrozole Impurity 45

QCC Cat No.:

QL201545

CAS No.:

870766-45-3

Mol Formula:

C11H11N3O2

Mol. Weight:

217.22

Letrozole Impurity 46

QCC Cat No.:

QL201546

CAS No.:

160388-64-7

Mol Formula:

C12H13N3O2

Mol. Weight:

231.25

Letrozole Impurity 47

QCC Cat No.:

QL201547

CAS No.:

46209-39-6

Mol Formula:

C9H8ClN3

Mol. Weight:

193.63

Letrozole Impurity 48

QCC Cat No.:

QL201548

CAS No.:

143030-54-0

Mol Formula:

C16H11BrN4

Mol. Weight:

339.19

Letrozole Impurity 49

QCC Cat No.:

QL201549

CAS No.:

NA

Mol Formula:

C19H16N4O2

Mol. Weight:

332.36

Letrozole Impurity 50

QCC Cat No.:

QL201550

CAS No.:

67013-55-2

Mol Formula:

C8H5Br2N

Mol. Weight:

274.94

Letrozole Impurity 51

QCC Cat No.:

QL201551

CAS No.:

NA

Mol Formula:

C17H11N5O2

Mol. Weight:

317.30

Letrozole Impurity 52

QCC Cat No.:

QL201552

CAS No.:

305861-48-7

Mol Formula:

C12H9N7

Mol. Weight:

251.25

Letrozole Impurity 53

QCC Cat No.:

QL201553

CAS No.:

NA

Mol Formula:

C17H11N5O2

Mol. Weight:

317.30

Letrozole Impurity 54

QCC Cat No.:

QL201554

CAS No.:

NA

Mol Formula:

C17H11N5O

Mol. Weight:

301.30

Letrozole Impurity 55

QCC Cat No.:

QL201555

CAS No.:

2500927-63-7

Mol Formula:

C17H13N5O

Mol. Weight:

303.32

Letrozole Impurity 56

QCC Cat No.:

QL201556

CAS No.:

1461654-89-6

Mol Formula:

C10H10N4O

Mol. Weight:

202.21

Letrozole Impurity 57

QCC Cat No.:

QL201557

CAS No.:

1250126-45-4

Mol Formula:

C10H9N3O2

Mol. Weight:

203.20

Levothyroxine Sodium;Liothyronine sodium EP Impurity A

QCC Cat No.:

QL202400NA

CAS No.:

25416-65-3;51-48-9(free base)

Mol Formula:

C15H11I4NO4*Na*H2O

Mol. Weight:

776.87*22.99*18.02

Levothyroxine EP Impurity A

QCC Cat No.:

QL202401

CAS No.:

6893-02-3

Mol Formula:

C15H12I3NO4

Mol. Weight:

650.97

Levothyroxine EP Impurity B

QCC Cat No.:

QL202402

CAS No.:

NA

Mol Formula:

C15H11ClI3NO4

Mol. Weight:

685.42

Levothyroxine EP Impurity C;Liothyronine EP Impurity C

QCC Cat No.:

QL202403

CAS No.:

51-24-1

Mol Formula:

C14H9I3O4

Mol. Weight:

621.93

Levothyroxine EP Impurity D;Liothyronine EP Impurity D

QCC Cat No.:

QL202404

CAS No.:

67-30-1

Mol Formula:

C14H8I4O4

Mol. Weight:

747.83

Levothyroxine EP Impurity E;Liothyronine EP Impurity E

QCC Cat No.:

QL202405

CAS No.:

1041-01-6

Mol Formula:

C15H13I2NO4

Mol. Weight:

525.08

Levothyroxine EP Impurity F

QCC Cat No.:

QL202406

CAS No.:

911661-90-0

Mol Formula:

C21H13I6NO5

Mol. Weight:

1120.76