Pharma Chemicals

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Erythromycin Impurity B (3’N-desmethyl erythromycin A)

CAS RN: 992-62-1

Erythromycin Impurity B (3’N-desmethyl erythromycin A)
Erythromycin Impurity D (Anhydro)

CAS RN: 23893-13-2

Erythromycin Impurity D (Anhydro)
Erythromycin Impurity E

CAS RN: 33396-29-1

Erythromycin Impurity E
Erythromycin Impurity F

CAS RN: 105822-69-7

Erythromycin Impurity F
Erythromycin Impurity H (N-oxide)

CAS RN: 992-65-4

Erythromycin Impurity H (N-oxide)
Erythromycin Impurity J (9-Oxime)

CAS RN: 13127-18-9

Erythromycin Impurity J (9-Oxime)
Erythromycin Impurity L (N-desmethyl – N-formoyl erythromycin A)

CAS RN: 0-0-0

Erythromycin Impurity L (N-desmethyl – N-formoyl erythromycin A)
Etoricoxib N-Oxide

CAS RN: 325855-74-1

Etoricoxib N-Oxide
Famotidine impurity B

CAS RN: 109467-08-5

Famotidine impurity B
Famotidine impurity E

CAS RN: 129083-44-9

Famotidine impurity E