 Home > Pharmaceutical Intermediates > Immunological Agents > (3R,4S)-3-(2-Bromoacetyl)-4-ethyl-1-pyrrolidinecarboxylic acid phenylmethyl ester for Sale > 1428243-26-8/(3R,4S)-3-(2-Bromoacetyl)-4-ethyl-1-pyrrolidinecarboxylic acid phenylmethyl ester

1428243-26-8/(3R,4S)-3-(2-Bromoacetyl)-4-ethyl-1-pyrrolidinecarboxylic acid phenylmethyl ester

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Unit Price:

$10-12/KG FOB

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CAS No.:

1428243-26-8

Content:

99%

Port:

china

Packaging:

1kg/bag

Price valid (until):

2027-12-31

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Conier Chem&Pharma Limited

Company Type:

Trader

Location:

China

Payment Terms:

TT against copy of documents,D/P,L/C,D/A,O/A,TT against B/L draft before shipment,100% TT in advance

Average Lead Time:

350 days

Qualification:

Main Products:

Dicobalt Octacarbonyl,(E,E)-Farnesol,(4S,5R)-4-Methyl-5-phenyloxazolidin-2-one,Geranyl linalool

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Product Description
Seller Information
Inquiry History

Description

intermediateofabt594;(3R,4S)-benzyl3-(2-bromoacetyl)-4-ethylpyrrolidine-1-carboxylate;Benzyl(3R,4S)-3-(2-bromoacetyl)-4-ethylpyrrolidine-1-carboxylate;Upadacitinibintermediate5;1-PyrrolidinecarboxylicacChemicalbookid,3-(2-bromoacetyl)-4-ethyl-,phenylmethylester,(3R,4S)-;Upadacitinibintermediate;(3R,4S)-3-(2-Bromoacetyl)-4-ethylpyrrolidine-1-carboxylate;(3R,4S)-3-(2-Bromoacetyl)-4-ethyl-1-pyrrolidinecarboxylicac...

ECHEMI Editorial Reference

Benzyl (3R,4S)-3-(2-bromoacetyl)-4-ethyl-1-pyrrolidinecarboxylate is extremely sensitive to pH, and the color characteristics of benzyl (3R,4S)-3-(2-bromoacetyl)-4-ethyl-1-pyrrolidinecarboxylate vary considerably at different pH values, and it exists and exhibits a red color mainly in the form of a molten salt ion when the aqueous pH is below 2, and it exhibits a red color when the pH is in the weak acidic range. pH is in the weakly acidic range, benzyl (3R,4S)-3-(2-bromoacetyl)-4-ethyl-1-pyrrolidinecarboxylate exists in the form of a colorless methanolic pseudobasic or hemiacetal form, and as the aqueous solution progressively approaches neutrality, benzyl (3R,4S)-3-(2-bromoacetyl)-4-ethyl-1-pyrrolidinecarboxylate deprotonates to a quinone base, and may also ring-open to the chalcone form.

Basic Info

Product Name:
(3R,4S)-3-(2-Bromoacetyl)-4-ethyl-1-pyrrolidinecarboxylic acid phenylmethyl ester

Other Name:
intermediate of abt594;Upadacitinib intermediate5;Upadacitinib intermediate;(3R,4S)-3-(2-Bromoacetyl)-4-ethylpyrrolidine-1-carboxylate;(3R,4S)-3-(2-Bromoacetyl)-4-ethyl-1-pyrrolidinecarboxylic ac...;(3R,4S)-3-(2-bromoacetyl)-4-ethyl-1-Pyrrolidinecarbox;Upadacitinib Intermediate1;1428243-26-8

CAS No.:
1428243-26-8

Molecular Formula:
C16H20BrNO3

InChIKeys:
QEFUCTKHMXMWRF-KGLIPLIRSA-N

Molecular Weight:
354.24

Exact Mass:
353.063

Categories:
Immunological Agents

Characteristics

PSA:
46.61

XLogP3:
3.1831

Density:
1.361±0.06 g/cm3(Predicted)

Boiling Point:
453.1±45.0 °C(Predicted)

PKA:
-2.91±0.60(Predicted)

Critical Temperature & Pressure:
Storage temp. 2-8°C
Seller Information

Business Type:
Trader

Main Products:
Dicobalt Octacarbonyl,(E,E)-Farnesol,(4S,5R)-4-Methyl-5-phenyloxazolidin-2-one,Geranyl linalool

Location:
11F ,#20 building, #18 Fuquan Road ,Jiangbei District, CHONGQING 400020, P.R China

Payment Terms:
TT against copy of documents,D/P,L/C,D/A,O/A,TT against B/L draft before shipment,100% TT in advance

Average lead Time:
350 days

Total Annual Revenue:
$10 million-$25 million

Total Employees:
11-50

Year of Establishment:
2010

Inquiry History

5 Inquiries

Country	Product	Purchase Quantity	Date Posted
India	(3R,4S)-3-(2-Bromoacetyl)-4-ethyl-1-pyrrolidinecarboxylic acid phenylmethyl ester	1 KG	Jan 4, 2026
India	(3R,4S)-3-(2-Bromoacetyl)-4-ethyl-1-pyrrolidinecarboxylic acid phenylmethyl ester	1 KG	Jan 5, 2026
India	(3R,4S)-3-(2-Bromoacetyl)-4-ethyl-1-pyrrolidinecarboxylic acid phenylmethyl ester	25 KG	May 8, 2026
India	(3R,4S)-3-(2-Bromoacetyl)-4-ethyl-1-pyrrolidinecarboxylic acid phenylmethyl ester	1000 KG	May 3, 2026
India	Benzyl (3R,4S)-3-(2-bromoacetyl)-4-ethylpyrrolidine-1-carboxylate	5 KG	May 19, 2025

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Product Name	Grade / Content	Supplier Name	Details
(3R,4S)-3-(2-Bromoacetyl)-4-ethyl-1-pyrrolidinecarboxylic acid phenylmethyl ester 99% Pharm Intermediate Professional Producer Greenbo	Pharmaceutical Grade/99	Greenbo Biochem	Inquiry
(3R,4S)-3-(2-Bromoacetyl)-4-ethyl-1-pyrrolidinecarboxylic acid phenylmethyl ester cas 1428243-26-8 Upadacitinib Intermediates	Pharmaceutical Grade/99	Jinan topfull chemical co.,ltd	Inquiry
1428243-26-8 (3R,4S)-3-(2-Bromoacetyl)-4-ethyl-1-pyrrolidinecarboxylic acid phenylmethyl ester	pharmaceutical grade/99	HONGKONG IPURE CHEMICAL CO., LIMITED	Inquiry
(3R,4S)-3-(2-Bromoacetyl)-4-ethyl-1-pyrrolidinecarboxylic acid phenylmethyl ester 1428243-26-8	/	Hefei Heyu Chemical New Materials Co., Ltd	Inquiry
(3R,4S)-3-(2-Bromoacetyl)-4-ethyl-1-pyrrolidinecarboxylic acid phenylmethyl ester 1KG	Pharmaceutical Grade/99	Shaanxi Dideu Medichem Co. Ltd	Inquiry

1428243-26-8/(3R,4S)-3-(2-Bromoacetyl)-4-ethyl-1-pyrrolidinecarboxylic acid phenylmethyl ester

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