Meet KM Pharma at CPHI Milan on October 06-08, 2026 - Booth No. 4J104 Book a meeting

Remdesivir Impurity 28

Remdesivir Impurity 28
Catalog No. KMR033023
CAS No. 2093124-22-0
Formula C21H27N2O7P
FW 450.4
Unit Price Stock
100 mg Enquire Enquire
Chemical Name 2-ethylbutyl ((R)-(4-nitrophenoxy)(phenoxy)phosphoryl)-D-alaninate
Purity >95%
Storage Store at 2-8 deg. C for long term storage
Shipping Product is stable to be Shipped at Room Temperature
Download MSDS

Related Products

Remdesivir Des alanine impurity

Remdesivir Des alanine impurity

CAS No. : 2607871-93-0

CAT No. : KMR033009

Formula : C18H18N5O7P

FW : 447.3

View Details
Remdesivir Impurity 20

Remdesivir Impurity 20

CAS No. : 1884576-18-4

CAT No. : KMR033019

Formula : C30H39N6O8P

FW : 642.6

View Details
Remdesivir Impurity 23

Remdesivir Impurity 23

CAS No. : 159326-68-8

CAT No. : KMR033021

Formula : C6H6N4

FW : 134.1

View Details
Remdesivir Impurity 30

Remdesivir Impurity 30

CAS No. : 1770840-43-1

CAT No. : KMR033026

Formula : C6H5IN4

FW : 260.0

View Details
Remdesivir Impurity 33

Remdesivir Impurity 33

CAS No. : 1355357-49-1

CAT No. : KMR033029

Formula : C33H31N5O4

FW : 561.6

View Details
Remdesivir Impurity 34

Remdesivir Impurity 34

CAS No. : 937046-98-5

CAT No. : KMR033030

Formula : C6H5BrN4

FW : 213.0

View Details
Remdesivir Impurity 35

Remdesivir Impurity 35

CAS No. : 55094-52-5

CAT No. : KMR033031

Formula : C26H26O5

FW : 418.5

View Details
Remdesivir Impurity 36

Remdesivir Impurity 36

CAS No. : 1439900-56-7

CAT No. : KMR033032

Formula : C21H27N2O7P

FW : 450.4

View Details
Remdesivir Impurity 37

Remdesivir Impurity 37

CAS No. : 1369903-46-7

CAT No. : KMR033033

Formula : C33H31N5O4

FW : 561.6

View Details
Remdesivir Impurity 38

Remdesivir Impurity 38

CAS No. : NA

CAT No. : KMR033034

Formula : C21H27N2O7P

FW : 450.4

View Details
Remdesivir Impurity 44

Remdesivir Impurity 44

CAS No. : 937046-97-4

CAT No. : KMR033040

Formula : C5H5N3 : HCl

FW : 107.1 : 36.5

View Details
Remdesivir O-Desphosphate Analogue

Remdesivir O-Desphosphate Analogue

CAS No. : 1191237-69-0

CAT No. : KMR033053

Formula : C12H13N5O4

FW : 291.3

View Details
Remdesivir O-Desphosphate Acetonide Impurity

Remdesivir O-Desphosphate Acetonide Impurity

CAS No. : 1191237-80-5

CAT No. : KMR033052

Formula : C15H17N5O4

FW : 331.3

View Details
Remdesivir R-P Isomer

Remdesivir R-P Isomer

CAS No. : 1911578-75-0

CAT No. : KMR033057

Formula : C27H35N6O8P

FW : 602.6

View Details
Remdesivir Impurity 1

Remdesivir Impurity 1

CAS No. : 1355049-95-4

CAT No. : KMR033014

Formula : C12H13N5O4

FW : 291.3

View Details
Remdesivir

Remdesivir

CAS No. : 1809249-37-3

CAT No. : KMR033001

Formula : C27H35N6O8P

FW : 602.6

View Details
Remdesivir 5’-Desphosphate 2’-O-[(S)phosphate]

Remdesivir 5’-Desphosphate 2’-O-[(S)phosphate]

CAS No. : NA

CAT No. : KMR033002

Formula : C27H35N6O8P

FW : 602.6

View Details
Remdesivir 5’-Desphosphate 3’-O-[(S)phosphate]

Remdesivir 5’-Desphosphate 3’-O-[(S)phosphate]

CAS No. : NA

CAT No. : KMR033003

Formula : C27H35N6O8P

FW : 602.6

View Details
Remdesivir Acid impurity

Remdesivir Acid impurity

CAS No. : NA

CAT No. : KMR033004

Formula : C21H23N6O8P

FW : 518.4

View Details
Remdesivir Bis Phosphoryl Impurity

Remdesivir Bis Phosphoryl Impurity

CAS No. : NA

CAT No. : KMR033006

Formula : C42H57N7O12P2

FW : 913.9

View Details
Remdesivir D-alanine isomer

Remdesivir D-alanine isomer

CAS No. : 2093124-26-4

CAT No. : KMR033007

Formula : C27H35N6O8P

FW : 602.6

View Details
Remdesivir Desphenyl Acid Impurity

Remdesivir Desphenyl Acid Impurity

CAS No. : NA

CAT No. : KMR033010

Formula : C15H19N6O8P

FW : 442.3

View Details
Remdesivir Desphenyl Impurity

Remdesivir Desphenyl Impurity

CAS No. : NA

CAT No. : KMR033011

Formula : C21H31N6O8P

FW : 526.5

View Details
Remdesivir Dihydroxy Impurity

Remdesivir Dihydroxy Impurity

CAS No. : NA

CAT No. : KMR033012

Formula : C30H39N6O8P

FW : 642.6

View Details
Remdesivir hydroxy N-Oxide

Remdesivir hydroxy N-Oxide

CAS No. : NA

CAT No. : KMR033013

Formula : C21H23N6O9P

FW : 534.4

View Details
Remdesivir Impurity 14

Remdesivir Impurity 14

CAS No. : 2657766-11-3

CAT No. : KMR033016

Formula : C15H24NO5P

FW : 329.3

View Details
Remdesivir Impurity 16

Remdesivir Impurity 16

CAS No. : 946565-74-8

CAT No. : KMR033017

Formula : C9H19NO2

FW : 173.3

View Details
Remdesivir Impurity 2

Remdesivir Impurity 2

CAS No. : NA

CAT No. : KMR033018

Formula : C19H19N5O4

FW : 381.4

View Details
Remdesivir Impurity 21

Remdesivir Impurity 21

CAS No. : 1911578-98-7

CAT No. : KMR033020

Formula : C21H23F5NO5P

FW : 495.4

View Details
Remdesivir Impurity 24

Remdesivir Impurity 24

CAS No. : 54623-25-5

CAT No. : KMR033022

Formula : C26H28O5

FW : 420.5

View Details
Remdesivir Impurity 29

Remdesivir Impurity 29

CAS No. : 1355049-92-1

CAT No. : KMR033024

Formula : C15H23ClNO4P

FW : 347.8

View Details
Remdesivir Impurity 3

Remdesivir Impurity 3

CAS No. : NA

CAT No. : KMR033025

Formula : C21H28NO5P

FW : 405.4

View Details
Remdesivir Impurity 31

Remdesivir Impurity 31

CAS No. : 2568148-57-0

CAT No. : KMR033027

Formula : C26H26O5

FW : 418.5

View Details
Remdesivir Impurity 32

Remdesivir Impurity 32

CAS No. : NA

CAT No. : KMR033028

Formula : C15H24NO5P

FW : 329.3

View Details
Remdesivir Impurity 39

Remdesivir Impurity 39

CAS No. : 793-12-4

CAT No. : KMR033035

Formula : C12H10NO6P

FW : 295.2

View Details
Remdesivir Impurity 4

Remdesivir Impurity 4

CAS No. : 1354823-36-1

CAT No. : KMR033036

Formula : C21H27N2O7P

FW : 450.4

View Details
Remdesivir Impurity 41

Remdesivir Impurity 41

CAS No. : 5435-24-5

CAT No. : KMR033037

Formula : C20H18O3S

FW : 338.4

View Details
Remdesivir Impurity 42

Remdesivir Impurity 42

CAS No. : NA

CAT No. : KMR033038

Formula : C25H31N6O8P

FW : 574.5

View Details
Remdesivir Impurity 43

Remdesivir Impurity 43

CAS No. : 2601424-37-5

CAT No. : KMR033039

Formula : C25H31N6O8P

FW : 574.5

View Details
Remdesivir Impurity 45

Remdesivir Impurity 45

CAS No. : NA

CAT No. : KMR033041

Formula : C25H31N6O10P

FW : 606.5

View Details
Remdesivir Impurity 46

Remdesivir Impurity 46

CAS No. : NA

CAT No. : KMR033042

Formula : C27H37N6O9P

FW : 620.6

View Details
Remdesivir Impurity 47

Remdesivir Impurity 47

CAS No. : NA

CAT No. : KMR033043

Formula : C30H40N7O8P

FW : 657.7

View Details
Remdesivir Impurity 48

Remdesivir Impurity 48

CAS No. : 2848679-61-6

CAT No. : KMR033044

Formula : C33H31N5O4

FW : 561.6

View Details
Remdesivir Impurity 5

Remdesivir Impurity 5

CAS No. : 1354823-37-2

CAT No. : KMR033045

Formula : C21H27N2O7P

FW : 450.4

View Details
Remdesivir Impurity 6

Remdesivir Impurity 6

CAS No. : 2096985-18-9

CAT No. : KMR033046

Formula : C21H27N2O7P

FW : 450.4

View Details
Remdesivir Impurity 7

Remdesivir Impurity 7

CAS No. : NA

CAT No. : KMR033047

Formula : C15H23ClNO5P

FW : 363.8

View Details
Remdesivir Impurity 9

Remdesivir Impurity 9

CAS No. : 1689993-65-4

CAT No. : KMR033048

Formula : C9H19NO2

FW : 173.3

View Details
Remdesivir Impurity A

Remdesivir Impurity A

CAS No. : NA

CAT No. : KMR033049

Formula : C12H13N5O4

FW : 291.3

View Details
Remdesivir Metabolite GS-443902

Remdesivir Metabolite GS-443902

CAS No. : 1355149-45-9

CAT No. : KMR033050

Formula : C12H16N5O13P3

FW : 531.2

View Details
Remdesivir N-Oxide

Remdesivir N-Oxide

CAS No. : NA

CAT No. : KMR033051

Formula : C27H35N6O9P

FW : 618.6

View Details
Remdesivir O-Desphosphate Tri-OBn Impurity

Remdesivir O-Desphosphate Tri-OBn Impurity

CAS No. : 1355049-94-3

CAT No. : KMR033054

Formula : C32H32N4O5

FW : 552.6

View Details
Remdesivir Phosphate impurity

Remdesivir Phosphate impurity

CAS No. : 1911578-74-9

CAT No. : KMR033055

Formula : C12H14N5O7P

FW : 371.2

View Details
Remdesivir R-P D-alanine isomer

Remdesivir R-P D-alanine isomer

CAS No. : 2096990-00-8

CAT No. : KMR033056

Formula : C27H35N6O8P

FW : 602.6

View Details
Remdesivir S-isomer at CN

Remdesivir S-isomer at CN

CAS No. : NA

CAT No. : KMR033059

Formula : C27H35N6O8P

FW : 602.6

View Details
Remdesivir Impurity 10

Remdesivir Impurity 10

CAS No. : NA

CAT No. : KMR033015

Formula : C30H39N6O8P

FW : 642.6

View Details
Remdesivir D5

Remdesivir D5

CAS No. : NA

CAT No. : KMR033008

Formula : C27H30D5N6O8P

FW : 607.6

View Details
Remdesivir R-P isomer D5

Remdesivir R-P isomer D5

CAS No. : NA

CAT No. : KMR033058

Formula : C27H30D5N6O8P

FW : 607.6

View Details
Remdesivir Alanine D4

Remdesivir Alanine D4

CAS No. : NA

CAT No. : KMR033005

Formula : C27H31D4N6O8P

FW : 606.6

View Details

About Us

K. M. Pharma Solution Pvt. Ltd., India (CIN: U72100GJ2023PTC141278), is a leading, innovation-driven company accredited by FDCA, GMP-GLP, ISO 9001:2015, and NABL (ISO/IEC 17025 & ISO 17034). Specializing in the design, synthesis, and characterization of pharmaceutical impurity standards and reference materials, we offer an extensive portfolio including nitrosamine impurities, pharmacopeial and non-pharmacopeial impurities, drug metabolites, glucuronides, process degradants, excipient-related impurities, unknown impurity isolation & structural elucidation, and stable isotope-labeled compounds.

As an integrated Contract Research, Development & Manufacturing Organization (CRDMO), we provide end-to-end scientific services — from early-stage discovery through to commercial supply — with a strong focus on quality, compliance, and customer satisfaction.

Contact Us

  • Unit No.101, Shivam Industrial park,
    Sarkhej-bavala NH=8A, At-Moraiya, Changodar,
    Ahmedabad (Gujarat), India - 382213
  • contact@kmpharma.in
  • +91 9898822121

© 2026 K.M.Pharma. All Rights Reserved