![(2R,3R,4R,5R)-2-(4-Aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-3,4-bis(benzyloxy)-5-((benzyloxy)methyl)tetrahydrofuran-2-carbonitrile chemical structure](/media/structures/PJXBLWLWNWGFJO-TXLSGFARSA-N.svg)
(2R,3R,4R,5R)-2-(4-Aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-3,4-bis(benzyloxy)-5-((benzyloxy)methyl)tetrahydrofuran-2-carbonitrile
- CAS
- 1355357-49-1
- Formula
- C33H31N5O4
- MW
- 561.6 g/mol
VQ-043775
Impurity reference standards
Remdesivir impurities & reference standards
Characterised Remdesivir impurities, degradation products and related compounds for analytical method development, validation, QC release and regulatory filings.
28reference materials
COAHPLC · NMR · MS on request
Parent API: Remdesivir WS
1809249-37-3 · C27H35N6O8P
![(2S,3R,4R,5R)-2-(4-Aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-3,4-bis(benzyloxy)-5-((benzyloxy)methyl)tetrahydrofuran-2-carbonitrile chemical structure](/media/structures/PJXBLWLWNWGFJO-CSEBVFCESA-N.svg)
(2S,3R,4R,5R)-2-(4-Aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-3,4-bis(benzyloxy)-5-((benzyloxy)methyl)tetrahydrofuran-2-carbonitrile
- CAS
- 1369903-46-7
- Formula
- C33H31N5O4
- MW
- 561.6 g/mol
VQ-033492
![(2S,3R,4S,5R)-2-(4-Aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-carbonitrile chemical structure](/media/structures/BRDWIEOJOWJCLU-UGKPPGOTSA-N.svg)
(2S,3R,4S,5R)-2-(4-Aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-carbonitrile
- CAS
- 1355049-95-4
- Formula
- C12H13N5O4
- MW
- 291.26 g/mol
VQ-035070
![(3R,4R,5R)-2-(4-Aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-3,4-bis(benzyloxy)-5-((benzyloxy)methyl)tetrahydrofuran-2-carbonitrile chemical structure](/media/structures/PJXBLWLWNWGFJO-BIVLTTKXSA-N.svg)
(3R,4R,5R)-2-(4-Aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-3,4-bis(benzyloxy)-5-((benzyloxy)methyl)tetrahydrofuran-2-carbonitrile
- CAS
- 1191237-68-9
- Formula
- C33H31N5O4
- MW
- 561.6 g/mol
VQ-044585
(3R,4R,5R)-3,4-Bis(benzyloxy)-5-((benzyloxy)methyl)dihydrofuran-2(3H)-one
- CAS
- 55094-52-5
- Formula
- C26H26O5
- MW
- 418.5 g/mol
VQ-043774
(S)-Sec-Butyl ((perfluorophenoxy)(phenoxy)phosphoryl)-L-alaninate
- CAS
- 1673560-27-4
- Formula
- C19H19F5NO5P
- MW
- 467.3 g/mol
VQ-044586
![2-Ethylbutyl ((R)-(((2R,3S,4R,5R)-5-(4-aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-5-cyano-3,4-dihydroxytetrahydrofuran-2-yl)methoxy)(phenoxy)phosphoryl)-D-alaninate chemical structure](/media/structures/RWWYLEGWBNMMLJ-LNPAEYNYSA-N.svg)
2-Ethylbutyl ((R)-(((2R,3S,4R,5R)-5-(4-aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-5-cyano-3,4-dihydroxytetrahydrofuran-2-yl)methoxy)(phenoxy)phosphoryl)-D-alaninate
- CAS
- 2096990-00-8
- Formula
- C27H35N6O8P
- MW
- 602.6 g/mol
VQ-041865
2-Ethylbutyl ((R)-(4-nitrophenoxy)(phenoxy)phosphoryl)-D-alaninate
- CAS
- 2093124-22-0
- Formula
- C21H27N2O7P
- MW
- 450.4 g/mol
VQ-043754
2-Ethylbutyl ((R)-(4-nitrophenoxy)(phenoxy)phosphoryl)-L-alaninate
- CAS
- 1354823-37-2
- Formula
- C21H27N2O7P
- MW
- 450.4 g/mol
VQ-044587
2-Ethylbutyl ((S)-(((2R,3S,4R,5R)-5-(4-aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-5-cyano-3,4-dihydroxytetrahydrofuran-2-yl)methoxy)(phenoxy)phosphoryl)-D-alaninate
- CAS
- 2093124-26-4
- Formula
- C27H35N6O8P
- MW
- 602.6 g/mol
VQ-033489
2-Ethylbutyl ((S)-(4-nitrophenoxy)(phenoxy)phosphoryl)-D-alaninate
- CAS
- 2096985-18-9
- Formula
- C21H27N2O7P
- MW
- 450.4 g/mol
VQ-043755
2-Ethylbutyl ((S)-(perfluorophenoxy)(phenoxy)phosphoryl)-L-alaninate
- CAS
- 1911578-98-7
- Formula
- C21H23F5NO5P
- MW
- 495.4 g/mol
VQ-044180
2-Ethylbutyl (chloro(phenoxy)phosphoryl)-L-alaninate
- CAS
- 1355049-92-1
- Formula
- C15H23ClNO4P
- MW
- 347.77 g/mol
VQ-043756
![4-Amino-7-bromo-pyrrolo[2,1-f][1,2,4]triazine chemical structure](/media/structures/YGCJBESZJIGDMP-UHFFFAOYSA-N.svg)
![4-Amino-7-iodopyrrolo[2,1-f][1,2,4]triazine chemical structure](/media/structures/ZEBGLCLVPCOXIV-UHFFFAOYSA-N.svg)
![Pyrrolo[2,1-f][1,2,4]triazin-4-amine chemical structure](/media/structures/VSPXQZSDPSOPRO-UHFFFAOYSA-N.svg)
FAQs — Remdesivir impurities
Which Remdesivir impurities do you supply?
We list 28 Remdesivir-related reference materials, including process impurities, degradation products and related compounds. Each is supplied with a COA, and characterisation data (HPLC, 1H-NMR, MS, IR) can be provided on request.
What are Remdesivir impurity standards used for?
They are used for analytical method development and validation, impurity identification and quantification, forced-degradation and stability studies, and to support ANDA, DMF and other regulatory submissions under ICH Q3A/Q3B (and ICH M7 for mutagenic impurities).
Can you synthesise a Remdesivir impurity that is not listed?
Yes. Our custom synthesis service can prepare and characterise unlisted impurities, metabolites and labelled analogues from milligram to gram scale. Share the structure or name and required quantity for a quotation.
Request Remdesivir impurity standards
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