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

Riociguat Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
N-Desmethyl Riociguat-d3 Stable Isotopes CS-T-101569 Not Available Enquire
N-Desmethyl Riociguat-D4 Stable Isotopes CS-EO-02574 625115-52-8-Unlabelled Enquire
N-Desmethyl Riociguat-D4 Stable Isotopes CS-EO-02413 625115-52-8-Unlabelled Enquire
Riociguat-13C,d3 Stable Isotopes CS-O-15618 625115-55-1(Unlabeled) In Stock
Riociguat-13CD6 Stable Isotopes CS-EO-02575 1304478-43-0Unlabelled Enquire
Riociguat-d3 Stable Isotopes CS-T-85745 1304478-72-5 Enquire
Riociguat-d6 Stable Isotopes CS-T-85067 1304478-43-0 Enquire


API

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Riociguat API CS-T-41853 625115-55-1 In Stock


Metabolite

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Desmethyl Riociguat Metabolite CS-O-15659 625115-52-8 In Stock


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2-[1-(2-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl]pyrimid... Impurity CS-T-74988 428854-24-4 Enquire
N-Desmethyl Riociguat Ethyl ester Impurity CS-EO-03185 625115-49-3 Enquire
Riociguat Impurity 20 Impurity CS-EO-01977 ---- Enquire
Riociguat Impurity 30 Impurity CS-EO-02256 Not Available Enquire
Riociguat Impurity 31 Impurity CS-EO-03186 ---- Enquire
Riociguat Impurtiy 6 Impurity CS-P-02081 1702271-98-4 Enquire
Riociguat Maleic acid amide impurity Impurity CS-O-53300 ---- Enquire
RIOCIGUAT METABOLITE M3 Impurity CS-O-48395 2298383-24-9 Enquire
Riociguat N-Ethyl Impurity Impurity CS-O-50962 1361570-27-5 Enquire
Riociguat Phenyldiazenyl Impurity Impurity CS-O-59867 370879-49-5 Enquire
Riociguat USP Related Compound A (HCl salt) Impurity CS-EO-03824 1309776-67-7 Enquire
Riociguat USP Related Compound C Impurity CS-EO-01753 2920299-23-4 Enquire
1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-carbonitrile Impurity CS-DL-00546 256376-65-5 Enquire
1-(2-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-carboximidam... Impurity CS-T-74437 256499-19-1 Enquire
1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-carboxylic a... Impurity CS-DL-00545 256376-59-7 Enquire
2-(1-(2-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)-5-(phe... Impurity CS-T-75275 428854-23-3 Enquire
2-Fluorobenzylhydrazine Impurity CS-M-51719 51859-98-4 Enquire
Riociguat Impurity 10 Impurity CS-EO-00851 3052969-92-0 Enquire
Riociguat Impurity 15 Impurity CS-EO-01586 1361569-10-9 Enquire
Riociguat Impurity 23 Impurity CS-EO-01785 4090-37-3 Enquire
Riociguat Impurity 24 Impurity CS-EO-01786 93866-45-6 Enquire
Riociguat Impurity 25 Impurity CS-EO-01800 956011-26-0 Enquire
Riociguat Impurity 28 Impurity CS-EO-01801 Not Available Enquire
Riociguat Impurity 29 Impurity CS-EO-01802 Not Available Enquire
Riociguat Impurity 9 Impurity CS-P-08367 Not Available Enquire
Riociguat Impurity D Impurity CS-EO-00850 625115-54-0 Enquire
Riociguat Impurtiy 1 Impurity CS-P-02076 Not Available Enquire
Riociguat Impurtiy 2 Impurity CS-P-02077 304874-06-4 Enquire
Riociguat Impurtiy 3 Impurity CS-P-02078 Not Available Enquire
Riociguat Impurtiy 4 Impurity CS-P-02079 Not Available Enquire
Riociguat Impurtiy 5 Impurity CS-P-02080 Not Available Enquire
Riociguat Impurtiy 7 Impurity CS-P-02082 Not Available Enquire
Riociguat N-Oxide Impurity CS-O-41236 Not Available Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1-(dicyanomethyl)-2-phenyldiazene oxide Intermediate CS-O-50243 Not Available Enquire


Glucuronide

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Riociguat M1 Glucuronide Glucuronide CS-P-09156 2298383-28-3 Enquire