Skip to content
Synthesis Analytics

Catalogue

The compound catalogue

Search 912 reference standards, impurities and working standards by compound name or CAS number. Everything listed can be quoted — pack sizes from 10 mg upward.

Showing 169–192 of 912 compounds

Cinacalcet

Cinacalcet Impurity 4

CAS Number

On request

Reference Standard
Cinacalcet

Cinacalcet Impurity 3

CAS Number

On request

Reference Standard
Ciprofloxacin

Ciprofloxacin EP Impurity A

CAS Number

86393-33-1

EP Impurity Standard
Ciprofloxacin

Ciprofloxacin EP Impurity B

CAS Number

93107-11-0

EP Impurity Standard
Ciprofloxacin

Ciprofloxacin EP Impurity C

CAS Number

103222-12-4

EP Impurity Standard
Ciprofloxacin

Ciprofloxacin EP Impurity D

CAS Number

133210-96-5

EP Impurity Standard
Ciprofloxacin

Ciprofloxacin EP Impurity E

CAS Number

105394-83-0

EP Impurity Standard
Ciprofloxacin

Ciprofloxacin EP Impurity F

CAS Number

226903-07-7

EP Impurity Standard
Citalopram

Citalopram EP Impurity A

CAS Number

64372-56-1

EP Impurity Standard
Citalopram

Citalopram EP Impurity B

CAS Number

411221-53-9

EP Impurity Standard
Citalopram

Citalopram EP Impurity C

CAS Number

372941-54-3

EP Impurity Standard
Citalopram

Citalopram EP Impurity D

CAS Number

144025-14-9

EP Impurity Standard
Citalopram

Citalopram EP Impurity E

CAS Number

On request

EP Impurity Standard
Citalopram

Citalopram EP Impurity F/Citalopram USP RC H

CAS Number

64169-39-7

EP Impurity Standard
Citalopram

Citalopram N-Oxide

CAS Number

63284-72-0

N-Oxide Impurity
Citalopram

Citalopram EP Impurity G

CAS Number

1329745-98-3

EP Impurity Standard
Clarithromycin

Clarithromycin quarternary salt

CAS Number

On request

Reference Standard
Clarithromycin

Clarithromycin EP Impurity A

CAS Number

124412-58-4

EP Impurity Standard
Clarithromycin

Clarithromycin EP Impurity B

CAS Number

299409-85-1

EP Impurity Standard
Clarithromycin

Clarithromycin EP Impurity C/Clarithromycin E-9-Oxime

CAS Number

127253-06-9

EP Impurity Standard
Clarithromycin

Clarithromycin EP Impurity D/N-Desmethyl Clarithromycin

CAS Number

101666-68-6

EP Impurity Standard
Clarithromycin

Clarithromycin EP Impurity E/6,11-Di-O-methylerythromycin A

CAS Number

81103-14-2

EP Impurity Standard
Clarithromycin

Clarithromycin EP Impurity F

CAS Number

128940-83-0

EP Impurity Standard
Clarithromycin

Clarithromycin EP Impurity H/N-Desmethyl N-formyl

CAS Number

127140-69-6

EP Impurity Standard
Rows of stoppered glass tubes under warm light

Next step

Can’t find the impurity you need?

Send us the compound name, the CAS number, or simply the chromatogram you are trying to explain. Our chemists will come back with availability, scale and a realistic timeline.