Impurity Standards

IP, USP and EP Compliant

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BETAHISTINE

Betahistine Impurity 3

CAT No.-
CAS No.13585-92-7
Mol. F.C8H12N2O
Mol. W.152.20
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BETAMETHASONE

Betamethasone Valerate Impurity G (beta-Bromo-Isomer)

CAT No.-
CAS No.-
Mol. F.C27H36BrFO6
Mol. W.555.49
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BETAMETHASONE

Betamethasone Valerate EP Impurity H

CAT No.-
CAS No.52619-18-8
Mol. F.C27H37ClO6
Mol. W.493.04
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BETAMETHASONE

Betamethasone Impurity 1

CAT No.-
CAS No.560-34-9
Mol. F.C22H31FO5
Mol. W.394.48
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BETAMETHASONE

Betamethasone Valerate EP Impurity E(Betamethasone 21-Valerate)

CAT No.-
CAS No.2240-28-0
Mol. F.C27H37FO6
Mol. W.476.59
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BETAMETHASONE

Betamethasone Impurity 2 (Betamethasone17beta -H-17-Ketoacid)

CAT No.-
CAS No.-
Mol. F.C22H27FO5
Mol. W.390.46
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BETAMETHASONE

Betamethasone EP Impurity C

CAT No.-
CAS No.13504-15-9
Mol. F.C22H28O4
Mol. W.356.46
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BETAMETHASONE

Betamethasone Impurity 3 (Betamethasone 17-Carboxylic Acid)

CAT No.-
CAS No.-
Mol. F.C21H27FO5
Mol. W.378.44
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BETAMETHASONE

Betamethasone EP Impurity D

CAT No.-
CAS No.52619-05-3
Mol. F.C25H33FO7
Mol. W.464.53
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BETAMETHASONE

Betamethasone Impurity 4

CAT No.-
CAS No.114488-14-1
Mol. F.C22H30O5
Mol. W.374.48
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