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Pharmaceutical Reference Standards / Impurity Standards

Folic Acid

Folic Acid

CAT. No.F060000
CAS. No.59-30-3
Mol. F.C19H19N7O6
Mol. W.441.40 g/mol
Stock Status:Instock

Folic Acid EP Impurity A

Folic Acid EP Impurity A

CAT. No.F060001
CAS. No.4271-30-1
Mol. F.C12H14N2O5
Mol. W.266.25 g/mol
Stock Status:Instock

Folic Acid EP Impurity A

Folic Acid EP Impurity A

CAT. No.F060001A
CAS. No.4271-30-1
Mol. F.C12H14N2O5
Mol. W.266.25 g/mol
Stock Status:Please Enquire

Folic Acid EP Impurity B

Folic Acid EP Impurity B

CAT. No.F060002
CAS. No.1004-75-7
Mol. F.C4H7N5O
Mol. W.141.13 g/mol
Stock Status:Instock

Folic Acid EP Impurity B

Folic Acid EP Impurity B

CAT. No.F060002A
CAS. No.35011-47-3(anhydrous)
Mol. F.C4H7N5O.H2SO4.H2O
Mol. W.257.23 g/mol
Stock Status:Instock

Folic Acid EP Impurity C

Folic Acid EP Impurity C

CAT. No.F060003
CAS. No.NA
Mol. F.C19H19N7O6
Mol. W.441.40 g/mol
Stock Status:Custom Synthesis

Folic Acid EP Impurity D

Folic Acid EP Impurity D

CAT. No.F060004
CAS. No.119-24-4
Mol. F.C14H12N6O3
Mol. W.312.28 g/mol
Stock Status:Instock

Folic Acid EP Impurity D

Folic Acid EP Impurity D

CAT. No.F060004A
CAS. No.119-24-4
Mol. F.C14H12N6O3
Mol. W.312.28 g/mol
Stock Status:Please Enquire

Folic Acid EP Impurity E

Folic Acid EP Impurity E

CAT. No.F060005
CAS. No.1391068-26-0
Mol. F.C26H24N12O7
Mol. W.616.54 g/mol
Stock Status:Custom Synthesis

Folic Acid EP Impurity F

Folic Acid EP Impurity F

CAT. No.F060006
CAS. No.1391194-56-1
Mol. F.C7H6ClN5O
Mol. W.211.61 g/mol
Stock Status:Instock

L-Glutamine

L-Glutamine

CAT. No.F060007
CAS. No.56-85-9
Mol. F.C5H10N2O3
Mol. W.146.14 g/mol
Stock Status:Instock

4-Aminobenzoic Acid

4-Aminobenzoic Acid

CAT. No.F060008
CAS. No.150-13-0
Mol. F.C7H7NO2
Mol. W.137.14 g/mol
Stock Status:Instock

Folinic Acid Calcium Salt

Folinic Acid Calcium Salt

CAT. No.F060010
CAS. No.1492-18-8
Mol. F.C20H21N7O7.Ca
Mol. W.511.50 g/mol
Stock Status:Instock

N-(tert-Butoxycarbonyl)-L-glutamine

N-(tert-Butoxycarbonyl)-L-glutamine

CAT. No.F060011
CAS. No.13726-85-7
Mol. F.C10H18N2O5
Mol. W.246.26 g/mol
Stock Status:Custom Synthesis

Pterine-6-carboxylic Acid

Pterine-6-carboxylic Acid

CAT. No.F060012
CAS. No.948-60-7
Mol. F.C7H5N5O3
Mol. W.207.15 g/mol
Stock Status:Custom Synthesis

9-Oxofolic Acid

9-Oxofolic Acid

CAT. No.F060013
CAS. No.39707-61-4
Mol. F.C19H17N7O7
Mol. W.455.38 g/mol
Stock Status:Custom Synthesis

Folitixorin

Folitixorin

CAT. No.F060014
CAS. No.3432-99-3
Mol. F.C20H23N7O6
Mol. W.457.44 g/mol
Stock Status:Custom Synthesis

4-[(2-amino-5-methyl-4-oxo-3,6,7,8-tetrahydropteridin-6-yl)methylamino]benzoic acid

4-[(2-amino-5-methyl-4-oxo-3,6,7,8-tetrahydropteridin-6-yl)methylamino]benzoic acid

CAT. No.F060015
CAS. No.NA
Mol. F.C15H18N6O3
Mol. W.330.34 g/mol
Stock Status:Custom Synthesis

Dimethyl Tetrahydrofolic Acid

Dimethyl Tetrahydrofolic Acid

CAT. No.F060016
CAS. No.NA
Mol. F.C21H27N7O6
Mol. W.473.48 g/mol
Stock Status:Custom Synthesis

10-Formyl Folic Acid

10-Formyl Folic Acid

CAT. No.F060017
CAS. No.134-05-4
Mol. F.C20H19N7O7
Mol. W.469.41 g/mol
Stock Status:Instock

Calcium Levofolinate

Calcium Levofolinate

CAT. No.F060018
CAS. No.80433-71-2
Mol. F.C20H23CaN7O7
Mol. W.513.13 g/mol
Stock Status:Custom Synthesis

Folic Acid for Impurity 1 Identification

Folic Acid for Impurity 1 Identification

CAT. No.F060020
CAS. No.59-30-3
Mol. F.C19H19N7O6
Mol. W.441.40 g/mol
Stock Status:Custom Synthesis

(6R)-Folinic Acid

(6R)-Folinic Acid

CAT. No.F060021
CAS. No.73951-54-9
Mol. F.C20H23N7O7
Mol. W.473.44 g/mol
Stock Status:Custom Synthesis

Folic Acid EP Impurity G

Folic Acid EP Impurity G

CAT. No.F060022
CAS. No.NA
Mol. F.C19H19N7O6
Mol. W.441.40 g/mol
Stock Status:Custom Synthesis

Folic acid impurity H

Folic acid impurity H

CAT. No.F060023
CAS. No.NA
Mol. F.C31H31N9O10
Mol. W.689.63 g/mol
Stock Status:Custom Synthesis

L-Alanyl-L-Glutamine

L-Alanyl-L-Glutamine

CAT. No.F060024
CAS. No.39537-23-0
Mol. F.C8H15N3O4
Mol. W.217.23 g/mol
Stock Status:Instock

4a-Hydroxy-5-methyltetrahydrofolate

4a-Hydroxy-5-methyltetrahydrofolate

CAT. No.F060025
CAS. No.33157-07-02
Mol. F.C20H25N7O7
Mol. W.475.46 g/mol
Stock Status:Custom Synthesis

Dimethyltetrahydrofolic Acid

Dimethyltetrahydrofolic Acid

CAT. No.F060026
CAS. No.NA
Mol. F.C21H27N7O6
Mol. W.473.48 g/mol
Stock Status:Custom Synthesis

4a-Hydroxy-5-methyltetrahydrofolate

4a-Hydroxy-5-methyltetrahydrofolate

CAT. No.F060027
CAS. No.33157-07-2
Mol. F.C20H25N7O7
Mol. W.475.46 g/mol
Stock Status:Custom Synthesis

5-Methyl-Tetrahydropteroic Acid

5-Methyl-Tetrahydropteroic Acid

CAT. No.F060028
CAS. No.4349-41-1
Mol. F.C15H18N6O3
Mol. W.330.34 g/mol
Stock Status:Custom Synthesis

Levofolinate EP Impurity I

Levofolinate EP Impurity I

CAT. No.F060029
CAS. No.31690-11-6
Mol. F.C20H23N7O6
Mol. W.457.45 g/mol
Stock Status:Custom Synthesis

D-Folic Acid

D-Folic Acid

CAT. No.F060030
CAS. No.65165-91-5
Mol. F.C19H19N7O6
Mol. W.441.40 g/mol
Stock Status:Instock

Phenylacetyl L-Glutamine

Phenylacetyl L-Glutamine

CAT. No.F060034
CAS. No.28047-15-6
Mol. F.C13H16N2O4
Mol. W.264.28 g/mol
Stock Status:Custom Synthesis

5-(gamma-folinilamido)Tetrahydrofolic Acid

5-(gamma-folinilamido)Tetrahydrofolic Acid

CAT. No.F060036
CAS. No.NA
Mol. F.C39H44N14O12
Mol. W.900.85 g/mol
Stock Status:Custom Synthesis

Folinic Acid Impurity B

Folinic Acid Impurity B

CAT. No.F060037
CAS. No.98814-60-9
Mol. F.C21H23N7O8
Mol. W.501.45 g/mol
Stock Status:Custom Synthesis

Folic Acid EP Impurity G Sulfate salt

Folic Acid EP Impurity G Sulfate salt

CAT. No.F060039
CAS. No.NA
Mol. F.C19H21N7O10S
Mol. W.539.48 g/mol
Stock Status:Limited Stock

N-Nitroso-Folic Acid

N-Nitroso-Folic Acid

CAT. No.F060040
CAS. No.26360-21-4
Mol. F.C19H18N8O7
Mol. W.470.40 g/mol
Stock Status:Instock

(6S)-Tetrahydrofolic Acid

(6S)-Tetrahydrofolic Acid

CAT. No.F060041
CAS. No.71963-69-4
Mol. F.C19H23N7O6
Mol. W.445.43 g/mol
Stock Status:Custom Synthesis

(6R)-5,10-Diformyltetrahydrofolic Acid

(6R)-5,10-Diformyltetrahydrofolic Acid

CAT. No.F060042
CAS. No.NA
Mol. F.C21H23N7O8
Mol. W.501.45 g/mol
Stock Status:Limited Stock

Pteridine-6-Carbaldehyde

Pteridine-6-Carbaldehyde

CAT. No.F060043
CAS. No.4742-17-0
Mol. F.C7H4N4O
Mol. W.160.13 g/mol
Stock Status:Custom Synthesis

(4-(((2-amino-5-methyl-4-oxo-3,4,5,6,7,8-Hexahydropteridin-6-yl)methyl)(methyl)amino)benzoyl)glutamic acid

(4-(((2-amino-5-methyl-4-oxo-3,4,5,6,7,8-Hexahydropteridin-6-yl)methyl)(methyl)amino)benzoyl)glutamic acid

CAT. No.F060044
CAS. No.NA
Mol. F.C21H27N7O6
Mol. W.473.48 g/mol
Stock Status:Custom Synthesis

Folic Acid EP Impurity C-Calcium salt

Folic Acid EP Impurity C-Calcium salt

CAT. No.F060046
CAS. No.NA
Mol. F.C19H17CaN7O6
Mol. W.479.46 g/mol
Stock Status:Custom Synthesis

Folic Acid EP Impurity E-Sulfate salt

Folic Acid EP Impurity E-Sulfate salt

CAT. No.F060047
CAS. No.NA
Mol. F.C26H26N12O11S
Mol. W.714.62 g/mol
Stock Status:Instock

N-Methyltetrahydrofolic Acid

N-Methyltetrahydrofolic Acid

CAT. No.F060048
CAS. No.134-35-0
Mol. F.C20H25N7O6
Mol. W.459.46 g/mol
Stock Status:Custom Synthesis

Folic Acid Impurity 26

Folic Acid Impurity 26

CAT. No.F060049
CAS. No.712-30-1
Mol. F.C7H5N5O2
Mol. W.191.15 g/mol
Stock Status:Instock

5-(gamma-folinoyl)tetrahydrofolate

5-(gamma-folinoyl)tetrahydrofolate

CAT. No.F060050
CAS. No.NA
Mol. F.C38H40N14O11
Mol. W.868.81 g/mol
Stock Status:Custom Synthesis

N-Nitroso Folic acid Impurity 2

N-Nitroso Folic acid Impurity 2

CAT. No.F060051
CAS. No.29291-35-8
Mol. F.C19H18N8O7
Mol. W.470.40 g/mol
Stock Status:Custom Synthesis

L-alanyl-L-alanyl-L-glutamine Trifluoroacetic Acid

L-alanyl-L-alanyl-L-glutamine Trifluoroacetic Acid

CAT. No.F060052
CAS. No.NA
Mol. F.C11H20N4O5.C2HF3O2
Mol. W.402.32 g/mol
Stock Status:Custom Synthesis

L-alanyl-L-glutamic acid Trifluoroacetic Acid

L-alanyl-L-glutamic acid Trifluoroacetic Acid

CAT. No.F060053
CAS. No.NA
Mol. F.C10H15F3N2O7
Mol. W.332.23 g/mol
Stock Status:Custom Synthesis

(6S)-Mefox

(6S)-Mefox

CAT. No.F060054
CAS. No.NA
Mol. F.C20H23N7O7
Mol. W.473.44 g/mol
Stock Status:Custom Synthesis

(6R)-Mefox

(6R)-Mefox

CAT. No.F060055
CAS. No.2305206-68-0
Mol. F.C20H23N7O7
Mol. W.473.44 g/mol
Stock Status:Custom Synthesis

Folinic Acid Nitroso Impurity 2

Folinic Acid Nitroso Impurity 2

CAT. No.F060056
CAS. No.NA
Mol. F.C20H22N8O8
Mol. W.502.44 g/mol
Stock Status:Custom Synthesis

N-Nitroso Leucovorin1

N-Nitroso Leucovorin1

CAT. No.F060057
CAS. No.NA
Mol. F.C20H22N8O8
Mol. W.502.44 g/mol
Stock Status:Custom Synthesis

Calcium-2-(4-(((2-amino-5-formyl-8-nitroso-4-oxo-3,4,5,6,7,8-hexahydropteridin-6-yl)methyl)(nitroso)amino)benzamido)pentanedioate

Calcium-2-(4-(((2-amino-5-formyl-8-nitroso-4-oxo-3,4,5,6,7,8-hexahydropteridin-6-yl)methyl)(nitroso)amino)benzamido)pentanedioate

CAT. No.F060058
CAS. No.NA
Mol. F.C20H19CaN9O9
Mol. W.569.50 g/mol
Stock Status:Custom Synthesis

Calcium(I)(2S)-2-(4-(((2-amino-5-formyl-8-nitroso-4-oxo-1,4,5,6,7,8-hexahydropteridin-6-yl)methyl)amino)benzamido)-4-carboxybutanoate

Calcium(I)(2S)-2-(4-(((2-amino-5-formyl-8-nitroso-4-oxo-1,4,5,6,7,8-hexahydropteridin-6-yl)methyl)amino)benzamido)-4-carboxybutanoate

CAT. No.F060059
CAS. No.NA
Mol. F.C20H21CaN8O8
Mol. W.541.51 g/mol
Stock Status:Custom Synthesis

Levofolinic Acid Nitroso Impurity 2

Levofolinic Acid Nitroso Impurity 2

CAT. No.F060060
CAS. No.NA
Mol. F.C20H21N8O8.Ca
Mol. W.541.51 g/mol
Stock Status:Custom Synthesis

Folinic Acid Nitroso Impurity 3

Folinic Acid Nitroso Impurity 3

CAT. No.F060061
CAS. No.NA
Mol. F.C20H21N9O9
Mol. W.531.44 g/mol
Stock Status:Custom Synthesis

Folic Acid Hydrate

Folic Acid Hydrate

CAT. No.F060062
CAS. No.1174277-30-5
Mol. F.C19H19N7O6.H2O
Mol. W.459.40 g/mol
Stock Status:Custom Synthesis

5-Formiminotetrahydrofolic acid

5-Formiminotetrahydrofolic acid

CAT. No.F060063
CAS. No.2311-81-1
Mol. F.C20H24N8O6
Mol. W.472.46 g/mol
Stock Status:Custom Synthesis

Folic Acid EP Impurity H Trisodium Salt

Folic Acid EP Impurity H Trisodium Salt

CAT. No.F060068
CAS. No.NA
Mol. F.C31H28N9O10.3Na
Mol. W.755.58 g/mol
Stock Status:Custom Synthesis

5,10-methylenetetrahydrofolate (Calcium salt)

5,10-methylenetetrahydrofolate (Calcium salt)

CAT. No.F060069
CAS. No.NA
Mol. F.C20H21N7O6.Ca
Mol. W.495.50 g/mol
Stock Status:Custom Synthesis

(6R)-Folinic Acid (Ca salt)

(6R)-Folinic Acid (Ca salt)

CAT. No.F060070
CAS. No.NA
Mol. F.C20H22N7O7.Ca
Mol. W.512.51 g/mol
Stock Status:Custom Synthesis

Folinic Acid Impurity F (calcium salt )

Folinic Acid Impurity F (calcium salt )

CAT. No.F060071
CAS. No.NA
Mol. F.C20H20N7O7.Ca
Mol. W.510.49 g/mol
Stock Status:Custom Synthesis

Isotope Labelled Compounds

5-(Methyl-d3)Tetrahydrofolic Acid (Mixture of Diatereomers)

5-(Methyl-d3)Tetrahydrofolic Acid (Mixture of Diatereomers)

CAT. No.F060009
CAS. No.1356019-97-0
Mol. F.C20H22D3N7O6
Mol. W.462.47 g/mol
Stock Status:Please Enquire

L-Glutamine-2,3,3,4,4-D5

L-Glutamine-2,3,3,4,4-D5

CAT. No.F060032
CAS. No.14341-78-7
Mol. F.C5H5D5N2O3
Mol. W.151.18 g/mol
Stock Status:Instock

L-Glutamic acid-2,3,3,4,4-D5

L-Glutamic acid-2,3,3,4,4-D5

CAT. No.F060032A
CAS. No.2784-50-1
Mol. F.C5H4D5NO4
Mol. W.152.16 g/mol
Stock Status:Please Enquire

[13C6]-Folic acid disodium salt

[13C6]-Folic acid disodium salt

CAT. No.F060035
CAS. No.161406-20-8(freeacid)
Mol. F.C1313C6H19N7Na2O6
Mol. W.493.29 g/mol
Stock Status:Limited Stock

Folic Acid-d4

Folic Acid-d4

CAT. No.F060038
CAS. No.59-30-3unlabelled
Mol. F.C19H15D4N7O6
Mol. W.445.42 g/mol
Stock Status:Please Enquire

Folic Acid-13C5

Folic Acid-13C5

CAT. No.F060045
CAS. No.NA
Mol. F.C1413C5H19N7O6
Mol. W.446.36 g/mol
Stock Status:Please Enquire

N-Nitroso Folic Acid D4

N-Nitroso Folic Acid D4

CAT. No.F060064
CAS. No.NA
Mol. F.C19H14D4N8O7
Mol. W.474.43 g/mol
Stock Status:Please Enquire

4-Aminobenzoic Acid-d4

4-Aminobenzoic Acid-d4

CAT. No.F060065
CAS. No.350820-01-8
Mol. F.C7H3D4NO2
Mol. W.141.16 g/mol
Stock Status:Please Enquire

4-Aminobenzoic Acid-13C6

4-Aminobenzoic Acid-13C6

CAT. No.F060066
CAS. No.161406-19-5
Mol. F.C13C6H7NO2
Mol. W.143.09 g/mol
Stock Status:Please Enquire

N-Acetyl Folic Acid-D4

N-Acetyl Folic Acid-D4

CAT. No.F060067
CAS. No.NA
Mol. F.C21H17D4N7O7
Mol. W.487.46 g/mol
Stock Status:Please Enquire