Promotional price valid on web orders only. Your contract pricing may differ. Interested in signing up for a dedicated account number?
Learn More

CERILLIANT™ Cyanoguanidine (Metformin Related Compound A) Solution, 50 μg/mL in Methanol, Sold by MilliporeSigma™ Supelco™

Certified reference material

Manufacturer:  MilliporeSigma Supelco M1961ML

Catalog No. 01-001-669

Due to product restrictions, please to purchase or view availability for this product.



Cyanoguanidine, also known as Metformin Related Compound A, is an impurity produced during pharmaceutical manufacturing of metformin active pharmaceutical ingredients (API). Along with M-195-1ML Metformin Impurity Mixture, this solution-based Certified Reference Material is suited for use in metformin monograph testing methods by HPLC in testing applications ranging from API release testing to pharmaceutical research.


67-56-1, 461-58-5
50 μg/mL in methanol
1 mL
UN 1230 - class 3 - PG 2 - Methanol, solution
9.7°C (49.5°F) - closed cup
Safety and Handling

Safety and Handling



Provide Content Correction

We continue to work to improve your shopping experience and your feedback regarding this content is very important to us. Please use the form below to provide feedback related to the content on this product.

Product Title

By clicking Submit, you acknowledge that you may be contacted by Fisher Scientific in regards to the feedback you have provided in this form. We will not share your information for any other purposes. All contact information provided shall also be maintained in accordance with our Privacy Policy.

Cancel Submit

CERILLIANT is a registered trademark of Cerilliant Corporation