Pharmaceutical Reference Standards / Impurity Standards

Carbidopa
Carbidopa
  • CAT. No.C720000
  • CAS. No.28860-95-9
  • Mol. F.C10H14N2O4
  • Mol. W.226.23 g/mol
  • Stock Status:Instock
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D,L-Carbidopa
D,L-Carbidopa
  • CAT. No.C720000B
  • CAS. No.302-53-4
  • Mol. F.C10H14N2O4
  • Mol. W.226.23 g/mol
  • Stock Status:Custom Synthesis
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(S)-(-)-Carbidopa
(S)-(-)-Carbidopa
  • CAT. No.C720000C
  • CAS. No.28860-95-9
  • Mol. F.C10H14N2O4
  • Mol. W.226.23 g/mol
  • Stock Status:Custom Synthesis
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3,4-dihydroxybenzaldehyde
3,4-dihydroxybenzaldehyde
  • CAT. No.C720001
  • CAS. No.139-85-5
  • Mol. F.C7H6O3
  • Mol. W.138.12 g/mol
  • Stock Status:Instock
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Carbidopa Related Compound A
Carbidopa Related Compound A
  • CAT. No.C720003
  • CAS. No.85933-19-3
  • Mol. F.C11H16N2O4
  • Mol. W.240.26 g/mol
  • Stock Status:Under Synthesis
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Carbidopa Impurity C
Carbidopa Impurity C
  • CAT. No.C720003A
  • CAS. No.84488-77-7
  • Mol. F.C11H16N2O4
  • Mol. W.240.30 g/mol
  • Stock Status:Custom Synthesis
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Carbidopa Impurity B
Carbidopa Impurity B
  • CAT. No.C720004
  • CAS. No.NA
  • Mol. F.C11H15NO4
  • Mol. W.225.24 g/mol
  • Stock Status:Custom Synthesis
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Carbidopa BP Impurity D
Carbidopa BP Impurity D
  • CAT. No.C720005
  • CAS. No.934371-48-9
  • Mol. F.C17H24N2O4
  • Mol. W.320.38 g/mol
  • Stock Status:Limited Stock
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Carbidopa EP Impurity E
Carbidopa EP Impurity E
  • CAT. No.C720006
  • CAS. No.52514-63-3
  • Mol. F.C11H16N2O4 
  • Mol. W.240.30 g/mol
  • Stock Status:Custom Synthesis
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Carbidopa Impurity F
Carbidopa Impurity F
  • CAT. No.C720007
  • CAS. No.1458640-32-8
  • Mol. F.C12H18N2O4
  • Mol. W.254.28 g/mol
  • Stock Status:Custom Synthesis
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Carbidopa EP Impurity J
Carbidopa EP Impurity J
  • CAT. No.C720008
  • CAS. No.43197-33-7
  • Mol. F.C10H13BrN2O4
  • Mol. W.305.13 g/mol
  • Stock Status:Instock
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Carbidopa BP Impurity C
Carbidopa BP Impurity C
  • CAT. No.C720009
  • CAS. No.84488-77-7
  • Mol. F.C11H16N2O4
  • Mol. W.240.26 g/mol
  • Stock Status:Custom Synthesis
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Carbidopa Methyl Ester
Carbidopa Methyl Ester
  • CAT. No.C720010
  • CAS. No.52514-63-3
  • Mol. F.C11H16N2O4
  • Mol. W.240.30 g/mol
  • Stock Status:Instock
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Carbidopa Ethyl Ester Hydrochloride Salt
Carbidopa Ethyl Ester Hydrochloride Salt
  • CAT. No.C720011
  • CAS. No.NA
  • Mol. F.C13H18N2O4Cl
  • Mol. W.290.74 g/mol
  • Stock Status:Custom Synthesis
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Carbidopa Ethyl Ester
Carbidopa Ethyl Ester
  • CAT. No.C720011A
  • CAS. No.1458640-32-8
  • Mol. F.C12H18N2O4
  • Mol. W.254.28 g/mol
  • Stock Status:Instock
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2-Bromo Carbidopa
2-Bromo Carbidopa
  • CAT. No.C720012
  • CAS. No.1246817-47-9
  • Mol. F.C10H13BrN2O4
  • Mol. W.305.13 g/mol
  • Stock Status:Custom Synthesis
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Carbidopa Impurity 1
Carbidopa Impurity 1
  • CAT. No.C720013
  • CAS. No.53832-94-3
  • Mol. F.C10H12O4
  • Mol. W.196.20 g/mol
  • Stock Status:Instock
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Cyclohexylidene Carbidopa Methyl Ester
Cyclohexylidene Carbidopa Methyl Ester
  • CAT. No.C720014
  • CAS. No.934371-48-9
  • Mol. F.C17H24N2O4
  • Mol. W.320.38 g/mol
  • Stock Status:Limited Stock
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4-O-Methylcarbidopa Impurity H
4-O-Methylcarbidopa Impurity H
  • CAT. No.C720015
  • CAS. No.1361017-74-4
  • Mol. F.C11H16N2O4
  • Mol. W.240.26 g/mol
  • Stock Status:Under Synthesis
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Carbidopa EP Impurity I
Carbidopa EP Impurity I
  • CAT. No.C720016
  • CAS. No.1246819-09-9
  • Mol. F.C10H13BrN2O4
  • Mol. W.305.13 g/mol
  • Stock Status:Custom Synthesis
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(R)-Carbidopa
(R)-Carbidopa
  • CAT. No.C720019
  • CAS. No.28875-92-5
  • Mol. F.C10H14N2O4
  • Mol. W.226.10 g/mol
  • Stock Status:Custom Synthesis
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Carbidopa EP Impurity B
Carbidopa EP Impurity B
  • CAT. No.C720020
  • CAS. No.18181-08-3
  • Mol. F.C11H15NO4
  • Mol. W.225.24 g/mol
  • Stock Status:Instock
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L-alpha-Methyl DOPA Methyl Ester Hydrochloride
L-alpha-Methyl DOPA Methyl Ester Hydrochloride
  • CAT. No.C720021
  • CAS. No.115054-62-1
  • Mol. F.C11H15NO4.HCl
  • Mol. W.261.70 g/mol
  • Stock Status:Custom Synthesis
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3-Hydroxy-O-methyl-L-tyrosine
3-Hydroxy-O-methyl-L-tyrosine
  • CAT. No.C720022
  • CAS. No.35296-56-1
  • Mol. F.C10H13NO4
  • Mol. W.211.22 g/mol
  • Stock Status:Custom Synthesis
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3,4-O,O-Dimethyl Carbidopa
3,4-O,O-Dimethyl Carbidopa
  • CAT. No.C720023
  • CAS. No.28860-96-0
  • Mol. F.C12H18N2O4
  • Mol. W.254.28 g/mol
  • Stock Status:Custom Synthesis
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Carbidopa Hydantoic Acid
Carbidopa Hydantoic Acid
  • CAT. No.C720024
  • CAS. No.28861-00-9
  • Mol. F.C13H18N2O5
  • Mol. W.282.29 g/mol
  • Stock Status:Custom Synthesis
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2-amino-3-hydroxy-3-(4-hydroxy-3-methoxyphenyl)propanoic acid
2-amino-3-hydroxy-3-(4-hydroxy-3-methoxyphenyl)propanoic acid
  • CAT. No.C720025
  • CAS. No.NA
  • Mol. F.C10H13NO5
  • Mol. W.227.21 g/mol
  • Stock Status:Custom Synthesis
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CARBIDOPA EP IMPURITY B
CARBIDOPA EP IMPURITY B
  • CAT. No.C720026
  • CAS. No.18181-08-3(Freebase)
  • Mol. F.C11H15NO4HCl
  • Mol. W.261.70 g/mol
  • Stock Status:Instock
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6,7-dihydroxy-3-methylcinnoline
6,7-dihydroxy-3-methylcinnoline
  • CAT. No.C720027
  • CAS. No.1176784-51-2
  • Mol. F.C9H8N2O2
  • Mol. W.176.17 g/mol
  • Stock Status:Custom Synthesis
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Carbidopa Impurity 2
Carbidopa Impurity 2
  • CAT. No.C720028
  • CAS. No.55175-59-2
  • Mol. F.C10H14N2O3
  • Mol. W.210.23 g/mol
  • Stock Status:Custom Synthesis
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N-nitroso Carbidopa
N-nitroso Carbidopa
  • CAT. No.C720029
  • CAS. No.NA
  • Mol. F.C10H13N3O5
  • Mol. W.255.23 g/mol
  • Stock Status:Instock
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Carbidopa Hydrate
Carbidopa Hydrate
  • CAT. No.C720031
  • CAS. No.38821-49-7
  • Mol. F.C10H16N2O5
  • Mol. W.244.24 g/mol
  • Stock Status:Custom Synthesis
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Carbidopa Impurity 4
Carbidopa Impurity 4
  • CAT. No.C720032
  • CAS. No.54716-90-4
  • Mol. F.C12H16N2O2
  • Mol. W.220.27 g/mol
  • Stock Status:Custom Synthesis
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Carbidopa EP Impurity I (racemic)
Carbidopa EP Impurity I (racemic)
  • CAT. No.C720033
  • CAS. No.1246819-09-9
  • Mol. F.C10H13BrN2O4
  • Mol. W.305.13 g/mol
  • Stock Status:Custom Synthesis
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Carbidopa Impurity 6
Carbidopa Impurity 6
  • CAT. No.C720034
  • CAS. No.2104012-68-0
  • Mol. F.C11H14O4
  • Mol. W.210.23 g/mol
  • Stock Status:Custom Synthesis
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Isotope Labelled Compounds

Carbidopa D3 Hydrate
Carbidopa D3 Hydrate
  • CAT. No.C720002
  • CAS. No.NA
  • Mol. F.C10H11D3N2O4.H2O
  • Mol. W.247.30 g/mol
  • Stock Status:Custom Synthesis
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Carbidopa D3
Carbidopa D3
  • CAT. No.C720002A
  • CAS. No.NA
  • Mol. F.C10H11D3N2O4
  • Mol. W.229.25 g/mol
  • Stock Status:Instock
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13C;D3 Carbidopa Trifluoroacetic acid salt Racemic mixture
13C;D3 Carbidopa Trifluoroacetic acid salt Racemic mixture
  • CAT. No.C720030
  • CAS. No.NA
  • Mol. F.C1113CH12D3F3N2O6
  • Mol. W.344.26 g/mol
  • Stock Status:Custom Synthesis
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