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

Remdesivir Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Remdesivir Alanine-d4 (Mixture of Diastereomers) Stable Isotopes CS-O-36312 Not Available In Stock
Remdesivir R-P isomer D5 Stable Isotopes CS-EO-02965 Not Available Enquire
Remdesivir-15N,13C3 Stable Isotopes CS-O-36157 1809249-37-3 (Unlabeled) Enquire
Remdesivir-d5 Stable Isotopes CS-O-44760 1809249-37-3(Unlabeled) Enquire
(R)-Remdesivir-d5 Stable Isotopes CS-O-44759 Not Available Enquire
Remdesivir 15N,13C3, D4 Stable Isotopes CS-O-35727 1809249-37-3 (Unlabeled) Enquire
Remdesivir Alanine D4 Stable Isotopes CS-T-93681 1809249-37-3 (Unlabeled) Enquire
Remdesivir D5 (Mixture of diastereomers) Stable Isotopes CS-O-36317 Not Available Enquire
Remdesivir GS-441524-13C5 Stable Isotopes CS-EO-02499 Not Available Enquire
Remdesivir GS-704277-D4 Stable Isotopes CS-O-36488 1911579-04-8 (Unlabeled) Enquire
Remdesivir-13C6 Stable Isotopes CS-O-35826 1809249-37-3 (Unlabeled) Enquire


API

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Remdesivir API CS-ZB-33160 1809249-37-3 In Stock
Remdesivir triphosphate trisodium API CS-O-47456 1355050-21-3 Enquire


Metabolite

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Remdesivir Alanine Metabolite Acetate (Ala-Met) Metabolite CS-O-35765 1911579-04-8 (free base) In Stock
Remdesivir Nucleoside Monophosphate Metabolite CS-O-35766 1911578-74-9 Enquire
Remdesivir Nucleoside Triphosphate Metabolite CS-O-35767 1355149-45-9 Enquire


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2-Ethylbutyl (2S)-2-aminopropanoate;hydrochloride Impurity CS-RS-00108 946511-97-3 Enquire
Di-N-Benzyl Remdesivir Impurity CS-O-56569 ---- Enquire
Mono-N-Benzyl Remdesivir Impurity CS-O-56576 ---- Enquire
NSJ-Remdesivir-RS005 Impurity CS-RS-00133 1355357-49-1 In Stock
Remdesivir Bis Phosphate Impurity CS-O-56581 ---- Enquire
Remdesivir Impurity 10 Impurity CS-O-35701 1884576-18-4 In Stock
Remdesivir Impurity 13 Impurity CS-O-35704 1911578-75-0 In Stock
Remdesivir Impurity 2 Impurity CS-P-08450 Not Available In Stock
Remdesivir Impurity 3 Impurity CS-O-35698 2093124-22-0 In Stock
Remdesivir Impurity 49 Impurity CS-O-56707 1673560-27-4 Enquire
Remdesivir Impurity 50 Impurity CS-O-56706 1191237-68-9 Enquire
Remdesivir Impurity 51 Impurity CS-O-56705 1392015-43-8 Enquire
Remdesivir Impurity 9 Impurity CS-O-35700 1689993-65-4 In Stock
Remdesivir impurity-18 Triethylamine salt Impurity CS-O-35988 Not Available In Stock
Remdesivir Methyl Ester Impurity CS-O-56582 ---- Enquire
Remdesivir Nucleoside Monophosphate Ammonium Impurity CS-O-35967 1911578-74-9 (free base) Enquire
Remdesivir O-Desphosphate Analogue Impurity CS-RS-00110 1191237-69-0 In Stock
Remdesivir O-Desphosphate Tri-OBn Impurity Impurity CS-O-56709 1355049-94-3 Enquire
Remdesivir PENTAFLUORO RR ISOMER Impurity CS-O-56578 ----- Enquire
Remdesivir p-NitroPhenoxy L-Alanine Impurity Impurity CS-P-08454 1354823-36-1 In Stock
Remdesivir R-P isomer and S-isomer at CN Impurity CS-O-35894 2773546-81-7 Enquire
Remdesivir tert-butyl ester Impurity CS-O-56564 ---- Enquire
Tri Ol N-dibenzyl Remdesivir Impurity Impurity CS-O-56575 ---- Enquire
Tri Ol N-Mono Benzyl Remdesivir Impurity Impurity CS-O-56573 ---- Enquire
((2R,3S,4R,5R)-5-(4-aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-... Impurity CS-O-36063 Not Available Enquire
(2R,3R,4R,5R)-2-(4-Aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-5... Impurity CS-O-35920 Not Available Enquire
(2S)-2-ethylbutyl 2-(((((2R,3S,4R,5R)-5-(4-amino-5-benzylpyr... Impurity CS-O-36069 Not Available Enquire
(2S)-2-ethylbutyl 2-(((((2R,3S,4R,5R)-5-(4-aminopyrrolo[2,1-... Impurity CS-O-35715 Not Available Enquire
(2S)-2-ethylbutyl 2-((((7-((2R,3R,4S,5R)-2-cyano-5-((((((S)-... Impurity CS-O-36070 Not Available Enquire
(2S)-2-ethylbutyl 2-(((perfluorophenoxy)(phenoxy)phosphoryl)... Impurity CS-O-35914 1673560-19-4 Enquire
(2S,3R,4R,5R)-2-(4-aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-3... Impurity CS-O-35911 1369903-46-7 Enquire
(3aR,4S,6R,6aR)-4-(4-aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)... Impurity CS-O-35915 Not Available Enquire
(S)-2-ethylbutyl 2-((bis(((2R,3S,4R,5R)-5-(4-aminopyrrolo[2,... Impurity CS-O-36071 Not Available Enquire
(S)-butyl 2-(((S)-(((3aR,4R,6R,6aR)-6-(4-aminopyrrolo[2,1-f]... Impurity CS-O-35776 Not Available Enquire
2-Ethylbutyl ((4-nitrophenoxy)(phenoxy)phosphoryl)-L-alanina... Impurity CS-O-35919 1439900-56-7 Enquire
2-Ethylbutyl ((R)-(((3aR,4R,6R,6aR)-6-(4-aminopyrrolo[2,1-f]... Impurity CS-O-35930 Not Available Enquire
2-Ethylbutyl ((R)-(perfluorophenoxy)(phenoxy)phosphoryl)-L-a... Impurity CS-O-35917 1911578-99-8 Enquire
2-Ethylbutyl ((S)-(((2R,3R,4R,5S)-5-(4-aminopyrrolo[2,1-f][1... Impurity CS-O-35931 Not Available Enquire
2-Ethylbutyl ((S)-(((3aR,4R,6R,6aR)-6-(4-aminopyrrolo[2,1-f]... Impurity CS-O-35922 Not Available Enquire
2-Ethylbutyl ((S)-(perfluorophenoxy)(phenoxy)phosphoryl)-D-a... Impurity CS-O-35918 Not Available Enquire
2-Ethylbutyl ((S)-(perfluorophenoxy)(phenoxy)phosphoryl)-L-a... Impurity CS-O-35916 1911578-98-7 Enquire
D-Alanine, N-[(S)-(4-nitrophenoxy)phenoxyphosphinyl]-, 2-eth... Impurity CS-P-08456 2096985-18-9 Enquire
GS-773095 Impurity CS-O-36124 Not Available Enquire
L-Alanine, N-(chlorophenoxyphosphinyl)-, 2-ethylbutyl ester ... Impurity CS-P-08460 1355049-92-1 Enquire
L-Alanine, N-[(R)-(4-nitrophenoxy)phenoxyphosphinyl]-, 2-eth... Impurity CS-P-08455 1354823-37-2 Enquire
NSJ-Remdesivir-RS004 Impurity CS-RS-00131 1911578-73-8 Enquire
NSJ-Remdesivir-RS009 Impurity CS-RS-00132 1191237-80-5 Enquire
NSJ-Remdesivir-RS012 Impurity CS-RS-00134 2096981-79-0 Enquire
Remdesivir Bis Phosphoryl impurity Impurity CS-EO-00544 Not Available Enquire
Remdesivir Desphenyl Acid Impurity Impurity CS-O-38416 Not Available Enquire
Remdesivir Desphenyl Impurity Impurity CS-O-35893 Not Available Enquire
Remdesivir Impurity 1 Impurity CS-P-08449 1355049-95-4 Enquire
Remdesivir Impurity 11 Impurity CS-O-35702 Not Available Enquire
Remdesivir Impurity 12 Impurity CS-O-35703 2093124-26-4 Enquire
Remdesivir Impurity 14 Impurity CS-O-35705 Not Available Enquire
Remdesivir Impurity 15 Impurity CS-O-35706 Not Available Enquire
Remdesivir Impurity 16 Impurity CS-RS-00084 Not Available Enquire
Remdesivir Impurity 16 Impurity CS-O-35710 Not Available Enquire
Remdesivir Impurity 17 Impurity CS-O-35707 946565-74-8 Enquire
Remdesivir Impurity 18 Impurity CS-O-35708 Not Available Enquire
Remdesivir Impurity 41 Impurity CS-EO-00861 5435-24-5 Enquire
Remdesivir Impurity 43 Impurity CS-EO-01113 2601424-37-5 Enquire
Remdesivir Impurity 8 Impurity CS-O-35699 Not Available Enquire
Remdesivir Impurity C Impurity CS-EO-01097 2563618-05-1 Enquire
Remdesivir N-oxide Impurity CS-O-35716 Not Available Enquire
Remdesivir Phosphate Impurity Impurity CS-O-38418 1911578-74-9 Enquire
Remdesivir R-P-D Alanine Isomer Impurity CS-O-38419 Not Available Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
4-Amino-7-bromo-pyrrolo[2,1-f][1,2,4]triazine Intermediate CS-M-52399 937046-98-5 In Stock
Pyrrolo[2,1-f][1,2,4]triazin-4-amine Intermediate CS-EL-25656 159326-68-8 In Stock


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2,3,5-Tri-O-benzyl-D-ribose Fine Chemicals CS-MM-12891 54623-25-5 Enquire
4-Amino-7-iodopyrrolo[2,1-f][1,2,4]triazine Fine Chemicals CS-RS-00083 1770840-43-1 Enquire