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

Cyclosporin Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Cyclosporin A D12 Stable Isotopes CS-CX-00782 59865-13-3 (Unlabelled) Enquire
Cyclosporin A D13 Stable Isotopes CS-O-42925 59865-13-3 (Unlabelled) Enquire
Cyclosporin A-13C2,d4 (Major) Stable Isotopes CS-T-98808 Not Available Enquire
Cyclosporin A-13C2,d4 Acetate (major) Stable Isotopes CS-T-95081 83602-41-9(Unlabelled) Enquire
Cyclosporin A-d4 (Major) Stable Isotopes CS-T-95082 59865-13-3(Unlabelled) Enquire
Cyclosporin A-D4 Acetate Stable Isotopes CS-F-00140 83602-41-9 (Unlabeled) Enquire
Cyclosporin A-D4 Acetate Stable Isotopes CS-F-00079 83602-41-9(Unlabelled) Enquire
Cyclosporin AM 1-d3 Stable Isotopes CS-T-103624 89270-28-0(unlabelled) Enquire
Cyclosporin AM 9-d6 Stable Isotopes CS-T-103626 89270-25-7(unlabelled) Enquire
Cyclosporin B-d4 Stable Isotopes CS-T-98807 Not Available Enquire
Cyclosporin C-d4 Stable Isotopes CS-T-98806 Not Available Enquire
Cyclosporin D-d4 Stable Isotopes CS-T-98805 63775-96-2(Unlabelled) Enquire
Cyclosporin H-d4 Stable Isotopes CS-T-98804 Not Available Enquire
Cyclosporin-A-d4 Stable Isotopes CS-O-11129 59865-13-3 (Unlabeled) In Stock


API Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Cyclosporin A API Standards CS-O-06250 59865-13-3 In Stock
Cyclosporin A Acetate API Standards CS-O-15739 83602-41-9 In Stock
Cyclosporin B API Standards CS-T-51503 63775-95-1 Enquire
Cyclosporin C API Standards CS-T-51504 59787-61-0 In Stock
Cyclosporin F API Standards CS-ED-01062 83574-28-1 Enquire
Cyclosporine API Standards CS-P-03966 59865-13-3 In Stock


Impurities

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
[Abu]5-Cyclosporin Impurities CS-O-33844 437611-17-1 Enquire
6-[(2S,3R,4R,5E)-3-hydroxy-4-methyl-2-(methylamino)-5,7-octa... Impurities CS-O-50122 761449-25-6 Enquire
Acetoxy Cyclosporine A Acetate Impurities CS-T-47013 138957-23-0 Enquire
Cyclosporin Dihydro Impurity A Impurities CS-O-07720 59865-15-5 In Stock
Cyclosporin E Impurities CS-ED-00260 63798-73-2 In Stock
Cyclosporin G Impurities CS-P-02441 74436-00-3 In Stock
Cyclosporin Impurity H Impurities CS-O-31095 83602-39-5 In Stock
Cyclosporin Impurity F Impurities CS-SN-00111 Not Available Enquire
Cyclosporin L Impurities CS-ED-00259 108027-39-0 Enquire
Cyclosporin U Impurities CS-ED-00332 108027-45-8 Enquire
Cyclosporin V Impurities CS-EO-01917 108027-46-9 Enquire
cyclosporine impurity 1 Impurities CS-O-36011 Not Available Enquire
cyclosporine impurity 2 Impurities CS-O-36012 Not Available Enquire
Cyclosporine Impurity 3 Sodium salt Impurities CS-O-56503 1822575-19-8 (free acid) Enquire
Cyclosporine V Impurities CS-O-33845 Not Available Enquire
Iso Cyclosporin A Impurities CS-T-56799 59865-16-6 In Stock
Iso Cyclosporin H Trifluoroacetic Acid Salt (>75% by HPLC) Impurities CS-T-93858 83602-43-1 free amine In Stock
Iso Cyclosporine H Impurities CS-T-56800 83602-43-1 In Stock


Intermediates

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Cyclosporin A Sulfate Intermediates CS-T-51502 121673-00-5 Enquire
Cyclosporin AM 4N Intermediates CS-T-73156 89270-23-5 Enquire
Cyclosporine A M9 Intermediates CS-T-51542 89270-25-7 Enquire
Cyclosporine AM 1 Intermediates CS-T-51505 89270-28-0 In Stock


Building Blocks

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
6-[(3R,4R)-3-(Acetyloxy)-N,4-dimethyl-6-oxo-L-norleucine] Cy... Building Blocks CS-T-47131 121584-52-9 Enquire