Impurity Reference Standard - Products

In Stock
Justification
Custom Synthesis

Cleanchem is a trusted provider of premium pharmaceutical reference materials, specializing in Capecitabine and its associated compounds. Our catalog includes pharmacopeial and non-pharmacopeial Capecitabine impurities, metabolites, nitrosamine derivatives (N-NO compounds), and stable isotope-labeled products. These reference standards play a critical role in pharmaceutical R&D, supporting activities such as product formulation, ANDA and DMF submissions, quality assurance, analytical method development, and stability assessments.
All Capecitabine-related substances undergo comprehensive characterization and are delivered with complete Certificates of Analysis and supporting analytical documentation to ensure regulatory adherence. Upon request, we can offer EP/USP traceable standards. Our products are routinely re-evaluated to maintain consistent quality and performance.

Capecitabine

CAT No: CL-CPB-01 CAS No: 154361-50-91370587-15-7 (HCl salt) Mol Wt: 359.4 Mol F: C15H22FN3O6 Inv Status: Custom Synthesis

Chemical Name: Pentyl [1-(5-deoxy-?-D-ribofuranosyl)-5-fluoro-2-oxo-1,2-dihydropyrimidin-4-yl]carbamate ; Pentyl 1-(5-deoxy-?-d-ribofuranosyl)-5-fluoro-1,2-dihydro-2-oxo-4-pyrimidinecarbamate (as per USP)

Capecitabine EP Impurity A

CAT No: CL-CPB-02 CAS No: 66335-38-4 Mol Wt: 245.2 Mol F: C9H12FN3O4 Inv Status: In Stock

Chemical Name: 4-Amino-1-(5-deoxy-?-D-ribofuranosyl)-5-fluoropyrimidin-2(1H)-one ; 5?-Deoxy-5-fluorocytidine (as per USP)

Capecitabine EP Impurity B

CAT No: CL-CPB-03 CAS No: (3094-5-9) Mol Wt: 246.2 Mol F: C9H11FN2O5 Inv Status: In Stock

Chemical Name: 1-(5-Deoxy-?-D-ribofuranosyl)-5-fluoropyrimidine-2,4(1H,3H)-dione ; 5?-Deoxy-5-fluorouridine (as per USP)

Capecitabine EP Impurity C

CAT No: CL-CPB-04 CAS No: 161599-46-8 Mol Wt: 329.3 Mol F: C13H16FN3O6 Inv Status: In Stock

Chemical Name: 1-(2,3-di-O-acetyl-5-deoxy-?-D-ribofuranosyl)-4-amino-5-fluoropyrimidin-2(1H)-one 2?,3?-Di-O-acetyl-5?-deoxy-5-fluorocytidine (as per USP)

Capecitabine EP Impurity D

CAT No: CL-CPB-05 CAS No: 910129-15-6 Mol Wt: 359.4 Mol F: C15H22FN3O6 Inv Status: Custom Synthesis

Chemical Name: (2RS)-2-Methylbutyl [1-(5-deoxy-?-D-ribofuranosyl)-5-fluoro-2-oxo-1,2-dihydropyrimidin-4-yl]carbamate

Capecitabine EP Impurity E

CAT No: CL-CPB-06 CAS No: 162204-30-0 Mol Wt: 359.4 Mol F: C15H22FN3O6 Inv Status: In Stock

Chemical Name: 3-Methylbutyl [1-(5-deoxy-?-D-ribofuranosyl)-5-fluoro-2-oxo-1,2-dihydropyrimidin-4-yl]carbamate ; 5?-Deoxy-5-fluoro-N4-(2-methylbutyloxycarbonyl)cytidine (as per USP)

Capecitabine EP Impurity F

CAT No: CL-CPB-07 CAS No: 921769-65-5 Mol Wt: 385.3 Mol F: C16H20FN3O7 Inv Status: Custom Synthesis

Chemical Name: Pentyl [5-fluoro-1-[(3aR,4R,6R,6aR)-6-methyl-2-oxotetrahydrofuro[3,4-d][1,3]dioxol-4-yl]-2-oxo-1,2-dihydropyrimidin-4-yl]carbamate ; 2?,3?-O-Carbonyl-5?-deoxy-5-fluoro-N4-(pentyloxycarbonyl)cytidine (as per USP)

Capecitabine EP Impurity G

CAT No: CL-CPB-08 CAS No: 162204-20-8 Mol Wt: 443.4 Mol F: C19H26FN3O8 Inv Status: In Stock

Chemical Name: Pentyl [1-(2,3-di-O-acetyl-5-deoxy-?-D-ribofuranosyl)-5-fluoro-2-oxo-1,2-dihydropyrimidin-4-yl]carbamate ; 2?,3?-Di-O-acetyl-5?-deoxy-5-fluoro-N4-(pentyloxycarbonyl)cytidine (as per USP)

Capecitabine EP Impurity M

CAT No: CL-CPB-09 CAS No: NA Mol Wt: 303.3 Mol F: C11H14FN3O6 Inv Status: Custom Synthesis

Chemical Name: (1-((2R,3R,4S,5R)-3,4-Dihydroxy-5-methyltetrahydrofuran-2-yl)-5-fluoro-2-oxo-1,2-dihydropyrimidin-4-yl)methyl carbamate

Capecitabine 2-O-BDR Impurity (USP)

CAT No: CL-CPB-10 CAS No: 1262133-66-3 Mol Wt: 475.5 Mol F: C20H30FN3O9 Inv Status: Custom Synthesis

Chemical Name: [1-[5-Deoxy-2-O-(5-deoxy-?-d-ribofuranosyl)-?-d-ribofuranosyl]-5-fluoro-2-oxo-1,2-dihydropyrimidin-4-yl]-carbamic acid pentyl ester (as per USP)

Capecitabine 3-O-BDR Impurity (USP)

CAT No: CL-CPB-11 CAS No: 1262133-64-1 Mol Wt: 475.5 Mol F: C20H30FN3O9 Inv Status: Custom Synthesis

Chemical Name: [1-[5-Deoxy-3-O-(5-deoxy-?-d-ribofuranosyl)-?-d-ribofuranosyl]-5-fluoro-2-oxo-1,2-dihydropyrimidin-4-yl]-carbamic acid pentyl ester (as per USP)

Capecitabine ?-Isomer

CAT No: CL-CPB-12 CAS No: NA Mol Wt: 359.4 Mol F: C15H22FN3O6 Inv Status: Custom Synthesis

Chemical Name: Pentyl 1-(5-deoxy-?-D-ribofuranosyl)-5-fluoro-1,2-dihydro-2-oxo-4-pyrimidinecarbamate

Capecitabine ?-Isomer Diacetyl Impurity

CAT No: CL-CPB-13 CAS No: NA Mol Wt: 443.4 Mol F: C19H26FN3O8 Inv Status: Custom Synthesis

Chemical Name: 4-Amino-5-fluoro-1-(2,3-di-O-acetyl-?-D-ribofuranosyl)-2(1H)-pyrimidinone

3?(5?Deoxy-a-D-ribofuranoyl) Capecitabine

CAT No: CL-CPB-14 CAS No: 1262133-68-5 Mol Wt: 475.5 Mol F: C20H30FN3O9 Inv Status: Custom Synthesis

Chemical Name: Cytidine, 5'-?deoxy-?3'-?O-?(5-?deoxy-??-?D-?ribofuranosyl)?-?5-?fluoro-?N-?[(pentyloxy)?carbonyl]?-; 5'-Deoxy-3'-O-(5-deoxy-?-D-ribofuranosyl)-5-fluoro-N-[(pentyloxy)carbonyl]cytidine;

Capecitabine Impurity 1

CAT No: CL-CPB-15 CAS No: NA Mol Wt: 289.2 Mol F: C10H12FN3O6 Inv Status: Custom Synthesis

Chemical Name: (3R,4R,5R)-5-(4-Amino-5-fluoro-2-oxopyrimidin-1(2H)-yl)-4-hydroxytetrahydrofuran-3-yl methyl carbonateSmiles: O=C1N=C(N)C(F)=CN1[C@H]2[C@@H]([C@@H](CO2)OC(OC)=O)O

Capecitabine Impurity 2

CAT No: CL-CPB-16 CAS No: NA Mol Wt: 257.2 Mol F: C9H8FN3O5 Inv Status: Custom Synthesis

Chemical Name: 4-Amino-5-fluoro-1-((3aR,4R,6aR)-2-oxotetrahydrofuro[3,4-d][1,3]dioxol-4-yl)pyrimidin-2(1H)-one

Capecitabine Impurity 3 (Defluoro Capecitabine)

CAT No: CL-CPB-17 CAS No: 216450-02-1 Mol Wt: 341.4 Mol F: C15H23N3O6 Inv Status: Custom Synthesis

Chemical Name: Pentyl (1-((2R,3R,4S,5R)-3,4-dihydroxy-5-methyltetrahydrofuran-2-yl)-2-oxo-1,2-dihydropyrimidin-4-yl)carbamate

Capecitabine Impurity 4

CAT No: CL-CPB-18 CAS No: 1313238-38-8 Mol Wt: 557.6 Mol F: C25H36FN3O10 Inv Status: Custom Synthesis

Chemical Name: Cytidine, 5'-deoxy-5-fluoro-N,N-bis[(pentyloxy)carbonyl]-, 2',3'-diacetate

N-Pentyl Chloroformate

CAT No: CL-CPB-19 CAS No: 638-41-5 Mol Wt: 150.6 Mol F: C6H11ClO2 Inv Status: Custom Synthesis

Chemical Name: Pentyl carbonochloridate

Capecitabine Isomers

CAT No: CL-CPB-20 CAS No: NA Mol Wt: 2(359.4) Mol F: 2(C15H22FN3O6) Inv Status: Custom Synthesis

Chemical Name: 2-Methylbutyl (1-((2R,3R,4S,5R)-3,4-dihydroxy-5-methyltetrahydrofuran-2-yl)-5-fluoro-2-oxo-1,2-dihydropyrimidin-4-yl)carbamate compound with isopentyl (1-((2R,3R,4S,5R)-3,4-dihydroxy-5-methyltetrahydrofuran-2-yl)-5-fluoro-2-oxo-1,2-dihydropyrimidin-4-yl)carbamate (1:1)

Capecitabine Impurity 16

CAT No: CL-CPB-21 CAS No: 71609-08-0 Mol Wt: 245.2 Mol F: C9H12FN3O4 Inv Status: Custom Synthesis

Chemical Name: 4-Amino-1-((2R,3S,4S,5R)-3,4-dihydroxy-5-methyltetrahydrofuran-2-yl)-5-fluoropyrimidin-2(1H)-one

Capecitabine Impurity 6

CAT No: CL-CPB-22 CAS No: 296248-49-2 Mol Wt: 303.3 Mol F: C11H14FN3O6 Inv Status: Custom Synthesis

Chemical Name: Methyl [1-(5-Deoxy-?-D-ribofuranosyl)-5-fluoro-1,2-dihydro-2-ox-carbamic Acid Ester

Capecitabine Impurity 14

CAT No: CL-CPB-23 CAS No: 23202-81-5 Mol Wt: 188.2 Mol F: C9H16O4 Inv Status: Custom Synthesis

Chemical Name: (3aR,4R,6R,6aR)-4-methoxy-2,2,6-trimethyltetrahydrofuro[3,4-d][1,3]dioxole

Capecitabine Impurity 11

CAT No: CL-CPB-24 CAS No: 111878-21-8 Mol Wt: 273.5 Mol F: C10H20FN3OSi2 Inv Status: Custom Synthesis

Chemical Name: 5-Fluoro-N-(trimethylsilyl)-2-((trimethylsilyl)oxy)pyrimidin-4-amine

Capecitabine Impurity 12

CAT No: CL-CPB-25 CAS No: 76497-54-6 Mol Wt: 260.2 Mol F: C11H16O7 Inv Status: Custom Synthesis

Chemical Name: (2R,3R,4R,5R)-5-methyltetrahydrofuran-2,3,4-triyl triacetate

Capecitabine Impurity 10

CAT No: CL-CPB-26 CAS No: NA Mol Wt: 260.2 Mol F: C11H16O7 Inv Status: Custom Synthesis

Chemical Name: 1,1',1''-((2S,3S,4R,5R)-2,3,4-Trihydroxy-5-methyltetrahydrofuran-2,3,4-triyl)tris(ethan-1-one)

Capecitabine Impurity 7

CAT No: CL-CPB-27 CAS No: NA Mol Wt: 387.3 Mol F: C15H18FN3O8 Inv Status: Custom Synthesis

Chemical Name: (2S,3S,4S,5S)-2-(5-Fluoro-4-((methoxycarbonyl)amino)-2-oxopyrimidin-1(2H)-yl)-5-methyltetrahydrofuran-3,4-diyl diacetate

Capecitabine Impurity 17

CAT No: CL-CPB-28 CAS No: 28708-32-9 Mol Wt: 318.3 Mol F: C13H18O9 Inv Status: Custom Synthesis

Chemical Name: (3R,4R,5R)-5-(acetoxymethyl)tetrahydrofuran-2,3,4-triyl triacetate

Capecitabine Impurity 18

CAT No: CL-CPB-29 CAS No: NA Mol Wt: 218.2 Mol F: C9H14O6 Inv Status: Custom Synthesis

Chemical Name: (2S,3R,4R,5R)-4-hydroxy-5-methyltetrahydrofuran-2,3-diyl diacetate

Capecitabine Impurity 19

CAT No: CL-CPB-30 CAS No: NA Mol Wt: 218.2 Mol F: C9H14O6 Inv Status: Custom Synthesis

Chemical Name: (2S,3R,4S,5R)-3-hydroxy-5-methyltetrahydrofuran-2,4-diyl diacetate

Capecitabine Impurity 20

CAT No: CL-CPB-31 CAS No: NA Mol Wt: 218.2 Mol F: C9H14O6 Inv Status: Custom Synthesis

Chemical Name: (2R,3R,4R,5R)-2-hydroxy-5-methyltetrahydrofuran-3,4-diyl diacetate

Capecitabine Impurity 15

CAT No: CL-CPB-33 CAS No: 279673-09-5 Mol Wt: 134.1 Mol F: C5H10O4 Inv Status: Custom Synthesis

Chemical Name: (2R,3R,4S,5R)-5-methyltetrahydrofuran-2,3,4-triol

Capecitabine Impurity 13

CAT No: CL-CPB-34 CAS No: 72402-14-3 Mol Wt: 204.2 Mol F: C9H16O5 Inv Status: Custom Synthesis

Chemical Name: ((3aR,4R,6aR)-6-methoxy-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methanol

Type:Impurity Reference Standard

Total Products: 33

Inv. Status:

Capecitabine Related Products

Products

Popular Links

Address(India):

Address(Bangladesh):

Subscribe for news letter:

CAT No:
CAS No:
Mol Wt:
Mol Formula:
Chemical Name:

CAT No:
CAS No:
Mol Wt:
Mol Formula:
Chemical Name:

CAT No:
CAS No:
Mol Wt:
Mol Formula:
Chemical Name:

CAT No:
CAS No:
Mol Wt:
Mol Formula:
Chemical Name: