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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Fluorouracil, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Fluorouracil impurity reference standards are invaluable for pharmaceutical research, supporting product development, ANDA and DMF submissions, quality control (QC), method validation, and stability studies. They also aid in identifying unknown impurities and assessing genotoxic potential.
Our Fluorouracil-related products undergo thorough characterization and are supplied with detailed Certificates of Analysis (COA) and analytical data that meet regulatory requirements. All supplied products are re-tested at regular intervals to ensure ongoing quality and compliance.

Fluorouracil Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
5-Fluorouracil-13C,15N2 Stable Isotopes CS-P-02912 1189423-58-2 In Stock
5-Fluorouracil-13C,15N2 N-β-D-Glucuronide Stable Isotopes CS-T-98458 Not Available Enquire
5-Fluorodihydropyrimidine-2,4-dione 13C,15N2 Stable Isotopes CS-T-54822 1189492-99-6 Enquire
5-FLUOROURACIL 13C4, 15N2 Stable Isotopes CS-R-00261 202407-03-2 Enquire
5-FLUOROURACIL 15N2 Stable Isotopes CS-R-00260 68941-95-7 Enquire
5-Fluorouracil-6-d1 Stable Isotopes CS-T-54940 90344-84-6 Enquire


Metabolite

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
5-hydroxy Uracil Metabolite CS-O-06003 496-76-4 In Stock


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
6-Chloro-1,3-dimethylpyrimidine-2,4(1H,3H)-dione Impurity CS-M-47432 6972-27-6 In Stock
Emtricitabine 5-fluorouracil analog Impurity CS-O-16331 145986-11-4 In Stock
Fluorouracil Dimer Impurity Impurity CS-O-47900 Not Available Enquire
Fluorouracil Impurity 11 Impurity CS-O-45436 Not Available Enquire
Fluorouracil Impurity 17 Impurity CS-O-59991 62836-98-0 Enquire
1,3-Bis(4-methoxybenzyl)-5-fluorouracil Impurity CS-T-07087 897304-05-1 Enquire
1,3-Di(benzyloxymethyl)-5-fluorouracil Impurity CS-T-52485 75500-03-7 Enquire
1,3-Dibenzyl-5-fluorouracil Impurity CS-T-52477 75500-02-6 Enquire
4,6-Dihydroxy-5-methoxypyrimidine Impurity CS-DL-00718 5193-84-0 Enquire
Fluorouracil Impurity Mixture (Containing Impurities D and ... Impurity CS-EG-03459 ---- Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
5,6-Diamino-1,3-dimethyl Uracil Intermediate CS-T-16860 5440-00-6 In Stock
5-Methoxyuracil Intermediate CS-T-80468 6623-81-0 In Stock
6-Methyl-2,4(1H,3H)-pyrimidinedione Intermediate CS-M-42931 626-48-2 In Stock


Glucuronide

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
5-Fluorouracil-β-D-Glucuronide Glucuronide CS-T-54942 66048-45-1 Enquire
5-Fluorouracil-β-D-Glucuronide Methyl Ester, 2,3,4-Tria... Glucuronide CS-T-54943 77476-81-4 Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
5-Chlorouracil Fine Chemicals CS-O-01151 1820-81-1 In Stock
6-Chlorouracil Fine Chemicals CS-T-12750 4270-27-3 Enquire
Barbituric Acid Fine Chemicals CS-I-00067 67-52-7 In Stock
Hydroxy Urea Fine Chemicals CS-T-28915 127-07-1 In Stock
Urea Fine Chemicals CS-T-62639 57-13-6 In Stock


Secondary Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Fluorouracil Secondary Standards CS-SS-24248-500MG 51-21-8 Enquire
Fluorouracil Related Compound B Secondary Standards CS-SS-25614-50MG 496-76-4 Enquire
Fluorouracil Related Compound E Secondary Standards CS-SS-25615-50MG 1820-81-1 Enquire
Fluorouracil Related Compound F Secondary Standards CS-SS-25616-50MG 56177-80-1 Enquire