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

Metformin Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Metformin D5 Stable Isotopes CS-O-53367 657-24-9 (Unlablled) Enquire
Metformin-d6 Stable Isotopes CS-O-45461 1185512-92-8 Enquire
Metformin-d6 Hydrochloride Stable Isotopes CS-O-02733 1185166-01-1 In Stock
N-Ethyl (Metformin-d6) Hydrochloride Stable Isotopes CS-T-95392 Not Available Enquire


API

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Metformin API CS-BB-00029 657-24-9 In Stock
Metformin Hydrochloride API CS-O-10931 1115-70-4 In Stock


Metabolite

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Metformin Hydroxy Analog 2 Metabolite CS-O-13425 98026-16-5 In Stock


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Glipizide and metformin hydrochloride Impurity CS-ED-41997 869289-66-7 Enquire
Metformin EP Impurity A Impurity CS-O-01162 461-58-5 In Stock
Metformin EP impurity B Impurity CS-O-13634 4405-08-7 In Stock
Metformin EP Impurity B Hydrochloride Impurity CS-O-15587 2959-04-8 In Stock
Metformin EP Impurity B NITRATE salt Impurity CS-O-39776 3553-49-9 Enquire
Metformin EP impurity C Impurity CS-T-20336 1985-46-2 In Stock
Metformin EP impurity D Impurity CS-O-11683 108-78-1 In Stock
Metformin Hydrochloride EP Impurity E Impurity CS-ED-00603 1609-00-3 Enquire
Metformin Hydrochloride EP Impurity E (Sulfate Salt) Impurity CS-T-32646 36801-25-9 In Stock
Metformin Hydroxy Analog 1 Impurity CS-O-13424 141-83-3 In Stock
Metformin Impurity 7 Impurity CS-O-58090 4390-68-5 Enquire
Metformin Impurity F Impurity CS-P-05287 506-59-2 Enquire
Sitagliptin+ Metformin Imp 4 Impurity CS-O-36495 Not Available Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Metformin Impurity F Hydrochloride Fine Chemicals CS-T-18579 506-59-2 In Stock
Methylamine Fine Chemicals CS-DB-00117 74-89-5 In Stock
dimethyl carbamic acid Fine Chemicals CS-O-34506 7260-94-8 Enquire


Nitrosamine

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
N-Nitroso Metformin Nitrosamine CS-O-38882 ---- Discontinued
N-Nitroso Metformin EP Impurity A Nitrosamine CS-EO-02678 ---- Enquire
N-Nitroso Metformin Hydrochloride Nitrosamine CS-O-48033 Not Available In Stock
N-Nitroso-Cyanoguanidine Nitrosamine CS-O-41712 ---- Enquire


Secondary Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Metformin hydrochloride Secondary Standards CS-SS-24002 1115-70-4 Enquire
Metformin hydrochloride Secondary Standards CS-SS-24002-500MG 1115-70-4 In Stock
Metformin Secondary standard Secondary Standards CS-SS-26558-1GM 657-24-9 Enquire
Metformin Secondary standard Secondary Standards CS-SS-26558 657-24-9 Enquire
Metformin EP Impurity A Secondary Standards CS-SS-26640 461-58-5 Enquire
Metformin hydrochloride Secondary Standards CS-SS-24002-250MG 1115-70-4 Enquire
Metformin hydrochloride Secondary Standards CS-SS-24002-1GM 1115-70-4 Enquire
Metformin Impurity F Secondary Standards CS-SS-24509-200MG 506-59-2 Enquire
Metformin Related Compound A Secondary Standards CS-SS-24336-500MG 461-58-5 Enquire
Metformin Related Compound A Secondary Standards CS-SS-24336-1GM 461-58-5 Enquire
Metformin Related Compound B Secondary Standards CS-SS-24485-50MG 1674-62-0 Enquire
Metformin Related Compound C Secondary Standards CS-SS-24486-50MG 1985-46-2 Enquire


Building Blocks

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2-Amino-4-(methylamino)-1,3,5-triazine Building Blocks CS-ED-01452 58228-69-6 Enquire


EP Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Metformin hydrochloride (M0605000) EP Standards CS-EG-01064 1115-70-4 In Stock
METFORMIN RELATED COMPOUND B & C System suitability EP Standards CS-EG-03376 Not Available Enquire