(3R,4S)-1-((Benzyloxy)carbonyl)-4-ethylpyrrolidine-3-carboxylic acid
- CAS
- 1428243-24-6
- Formula
- C15H19NO4
- MW
- 277.31 g/mol
VQ-034489
Impurity reference standards
Upadacitinib impurities & reference standards
Characterised Upadacitinib impurities, degradation products and related compounds for analytical method development, validation, QC release and regulatory filings.
27reference materials
COAHPLC · NMR · MS on request
Parent API: Upadacitinib WS
1310726-60-3 · C17H19F3N6O
(3R,4S)-3-(2-Bromoacetyl)-4-ethyl-1-pyrrolidinecarboxylic acid phenylmethyl ester
- CAS
- 1428243-26-8
- Formula
- C16H20BrNO3
- MW
- 354.24 g/mol
VQ-028581
(3S,4R)-1-((Benzyloxy)carbonyl)-4-ethylpyrrolidine-3-carboxylic acid
- CAS
- 1428243-69-9
- Formula
- C15H19NO4
- MW
- 277.31 g/mol
VQ-042754
![(3S,4R)-3-Ethyl-4-(3-tosyl-3H-imidazo[1,2-a]pyrrolo[2,3-e]pyrazin-8-yl)-N-(2,2,2-trifluoroethyl)pyrrolidine-1-carboxamide chemical structure](/media/structures/KATSISSQDXODJA-AEFFLSMTSA-N.svg)
(3S,4R)-3-Ethyl-4-(3-tosyl-3H-imidazo[1,2-a]pyrrolo[2,3-e]pyrazin-8-yl)-N-(2,2,2-trifluoroethyl)pyrrolidine-1-carboxamide
- CAS
- 2411540-30-0
- Formula
- C24H25F3N6O3S
- MW
- 534.6 g/mol
VQ-023951
![1-((3S,4R)-3-Ethyl-4-(3-tosyl-3H-imidazo[1,2-a]pyrrolo[2,3-e]pyrazin-8-yl)pyrrolidin-1-yl)-2,2,2-trifluoroethan-1-one chemical structure](/media/structures/LNUKYJWZESHVHA-WBVHZDCISA-N.svg)
1-((3S,4R)-3-Ethyl-4-(3-tosyl-3H-imidazo[1,2-a]pyrrolo[2,3-e]pyrazin-8-yl)pyrrolidin-1-yl)-2,2,2-trifluoroethan-1-one
- CAS
- 2768445-19-6
- Formula
- C23H22F3N5O3S
- MW
- 505.5 g/mol
VQ-034491
1-((Benzyloxy)carbonyl)-4-ethyl-2,5-dihydro-1H-pyrrole-3-carboxylic Acid
- CAS
- 1869118-25-1
- Formula
- C15H17NO4
- MW
- 275.3 g/mol
VQ-042755
![2-Bromo-5H-Pyrrolo[2,3-b]Pyrazine chemical structure](/media/structures/KTKMLXBEBKGQGL-UHFFFAOYSA-N.svg)
![3-Bromo-5H-pyrrolo[2,3-b]pyrazine chemical structure](/media/structures/JOCWQJGZBIFQLM-UHFFFAOYSA-N.svg)
![8-((3R,4S)-4-Ethyl-1-((2,2,2-trifluoroethyl)carbamoyl)pyrrolidin-3-yl)-N-(2,2,2-trifluoroethyl)-3H-imidazo[1,2-a]pyrrolo[2,3-e]pyrazine-3-carboxamide chemical structure](/media/structures/WHRQTFAKBJNQRU-NEPJUHHUSA-N.svg)
8-((3R,4S)-4-Ethyl-1-((2,2,2-trifluoroethyl)carbamoyl)pyrrolidin-3-yl)-N-(2,2,2-trifluoroethyl)-3H-imidazo[1,2-a]pyrrolo[2,3-e]pyrazine-3-carboxamide
- CAS
- 2715120-86-6
- Formula
- C20H21F6N7O2
- MW
- 505.4 g/mol
VQ-028582
![8-((3R,4S)-4-Ethylpyrrolidin-3-yl)-3-tosyl-3H-imidazo[1,2-a]pyrrolo[2,3-e]pyrazine chemical structure](/media/structures/VJDVHRAORKIHCS-WBVHZDCISA-N.svg)
8-((3R,4S)-4-Ethylpyrrolidin-3-yl)-3-tosyl-3H-imidazo[1,2-a]pyrrolo[2,3-e]pyrazine
- CAS
- 1428243-28-0
- Formula
- C21H23N5O2S
- MW
- 409.5 g/mol
VQ-028585
![8-((3R,4S)-4-Ethylpyrrolidin-3-yl)-3H-imidazo[1,2-a]pyrrolo[2,3-e]pyrazine chemical structure](/media/structures/JQCFYUAAZPLOAT-ZJUUUORDSA-N.svg)
8-((3R,4S)-4-Ethylpyrrolidin-3-yl)-3H-imidazo[1,2-a]pyrrolo[2,3-e]pyrazine
- CAS
- 1708997-43-6
- Formula
- C14H17N5
- MW
- 255.32 g/mol
VQ-028584
Benzyl (3R,4S)-3-acetyl-4-ethylpyrrolidine-1-carboxylate
- CAS
- 2411540-29-7
- Formula
- C16H21NO3
- MW
- 275.34 g/mol
VQ-034494
Rel-Benzyl (3R,4R)-3-(2-bromoacetyl)-4-ethylpyrrolidine-1-carboxylate
- CAS
- 2304514-60-9
- Formula
- C16H20BrNO3
- MW
- 354.24 g/mol
VQ-028588
![tert-Butyl N-[5-(4-methylbenzenesulfonyl)-5H-pyrrolo[2,3-b]pyrazin-2-yl]carbamate chemical structure](/media/structures/NTMJGYRFMXFNIC-UHFFFAOYSA-N.svg)
tert-Butyl N-[5-(4-methylbenzenesulfonyl)-5H-pyrrolo[2,3-b]pyrazin-2-yl]carbamate
- CAS
- 1201187-44-1
- Formula
- C18H20N4O4S
- MW
- 388.4 g/mol
VQ-028586
FAQs — Upadacitinib impurities
Which Upadacitinib impurities do you supply?
We list 27 Upadacitinib-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 Upadacitinib 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 Upadacitinib 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 Upadacitinib impurity standards
We reply within one business day with price, pack options, lead time and documentation.