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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Riboflavin, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Riboflavin 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 Riboflavin-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.

Riboflavin Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(-)-Riboflavin 13C4, 15N2 Stable Isotopes CS-EK-00236 1217461-14-7 Enquire
(-)-Riboflavin 5-phosphate 13C4, 15N2 Stable Isotopes CS-EK-02247 146-17-8 unlabeled Enquire
Riboflavin Phosphate Sodium Salt-D3 Stable Isotopes CS-T-94145 130-40-5 (Unlabeled) Enquire
Riboflavin Phosphate Sodium Salt-d3 (Technical Grade (May co... Stable Isotopes CS-T-95009 130-40-5(Unlabeled) Enquire
Riboflavin-13C,15N2 Stable Isotopes CS-O-16692 83-88-5 (Unlabeled) In Stock
Riboflavin-13C4,15N2 Stable Isotopes CS-O-10256 1217461-14-7 Enquire
Riboflavin-13C4-15N 5-phosphate Stable Isotopes CS-CX-00683 Not Available Enquire
Riboflavin-d7 (6-d1; 7,8-dimethyl-d6) Stable Isotopes CS-C-01410 83-88-5(Unlabelled) Enquire
Riboflavin-d8 Stable Isotopes CS-O-03067 83-88-5(Unlabeled) In Stock
Riboflavine 8-Methyl-D3 Stable Isotopes CS-T-94144 83-88-5 (unlabeled) Enquire


API Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Riboflavin API Standards CS-O-02238 83-88-5 In Stock


Impurities

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1-Deazariboflavin Impurities CS-T-51652 64183-66-0 Enquire
5-Deazariboflavin Impurities CS-T-51653 19342-73-5 Enquire
Riboflavin 3‘ 4‘-Diphosphate (Na Salt) Impurities CS-O-55099 86108-27-2 (Freebase) Enquire
Riboflavin 3‘ 4‘-Diphosphate (TEA Salt) Impurities CS-O-54563 86108-27-2 (Freebase) In Stock
Riboflavin 3’,4’-Diphosphate Impurities CS-T-85973 86108-27-2 Enquire
Riboflavin 3’,5’-Diphosphate Impurities CS-T-85073 86108-26-1 Enquire
Riboflavin 4’,5’-Diphosphate Impurities CS-T-85252 86108-25-0 Enquire
Riboflavin 5'-(Dihydrogen Phosphate) Monosodium Dihydrate Impurities CS-T-61135 6184-17-4 In Stock
Riboflavin 5-Phosphate Sodium Impurities CS-O-02239 130-40-5 In Stock
Riboflavin EP Impurity C Impurities CS-T-53694 2535-20-8 Enquire
Riboflavin EP Impurity D Impurities CS-P-08690 52134-62-0 Enquire
Riboflavin Impurity D Impurities CS-P-06137 52134-62-0 Enquire
Riboflavin impurity E Impurities CS-O-52561 64480-68-8 Enquire
Riboflavin-3’-phosphate Impurities CS-T-85831 80400-93-7 Enquire
Riboflavin-4’-phosphate Impurities CS-T-85257 60697-29-2 Enquire
Riboflavin-4'-Phosphate Sodium Impurities CS-O-51764 494789-91-2 Enquire
Riboflavine 5'-phosphate Impurities CS-ED-02003 146-17-8 In Stock


EP Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Riboflavin EP Standards CS-EG-00596 Not Available Enquire
Riboflavin for peak identification (Y0000757) EP Standards CS-EG-02996 83-88-5 Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Riboflavin Tetrabutyrate Fine Chemicals CS-ZE-15467 752-56-7 Enquire