 Home > Pharmaceutical Intermediates > Immunological Agents > (3R,4S)-3-(2-Bromoacetyl)-4-ethyl-1-pyrrolidinecarboxylic acid phenylmethyl ester for Sale > (3R,4S)-3-(2-Bromoacetyl)-4-ethyl-1-pyrrolidinecarboxylic acid phenylmethyl ester RC00638

(3R,4S)-3-(2-Bromoacetyl)-4-ethyl-1-pyrrolidinecarboxylic acid phenylmethyl ester RC00638

Name: (3R,4S)-3-(2-Bromoacetyl)-4-ethyl-1-pyrrolidinecarboxylic acid phenylmethyl ester RC00638
Brand: Royalchem
SKU: pr2508281630
Price: 3 USD
Availability: InStock

5 Inquiries

Unit Price: Get Latest Price 

CAS No.:

1428243-26-8

Grade:

Pharmaceutical Grade

Content:

99%

Port:

中国

Brand:

Royalchem

Packaging:

25kg/drum

Sample Available:

Yes

Price valid (until):

2025-12-31

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Hangzhou Royalchem Co.,LTD

Company Type:

Trader

Location:

China

Payment Terms:

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

Average Lead Time:

14 days

Qualification:

Main Products:

Pharmaceutical intermediates

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Product Details
Seller Information
Inquiry History

Description

Product Detail

Manufacturer: Hangzhou Royalchem Co.,LTD.

Website: www.cnroyalchem.com

【Providing a complete set of intermediates and impurities for Upadacitinib 】

【Providing a complete set of intermediates and impurities for Upadacitinib 】

【Providing a complete set of intermediates and impurities for Upadacitinib 】

Hangzhou Royalchem Co., Ltd. was founded by a senior team with profound professional backgrounds in the chemical field, focusing on providing comprehensive chemical products and services. Its business scope covers a wide range, including the sales of core chemical products such as pharmaceutical raw materials and intermediates, food/feed additives, specialty chemicals, dyes & pigments, new catalytic materials, chemical reagents, engineering plastics and synthetic resins. It also engages in the sales of daily chemicals, containers, and import-export business, meeting the needs of clients across multiple sectors. Leveraging the technical accumulation of its professional team and strict quality control, the company has established a stable cooperation network in domestic and international markets. It not only provides high-quality raw material support for industries but also promotes global chemical resource circulation through import-export operations. Adhering to the philosophy of "win-win cooperation," Hangzhou Royalchem Co., Ltd. takes professionalism and integrity as its cornerstone, and sincerely looks forward to working with global partners to drive high-quality development in the chemical industry.

Hangzhou Royalchem Co., Ltd. Is focus on services on CMO & CDMO

Esterification, saponification, hydrolysis, alkylation, halogenation, acetylation, pressurized hydrogenation, and other reactions .

P reparation and separation of various impurities .

D evelopment of preparation and purification production processes, salt conversion, liquid preparation post-treatment, etc.

Items Specifications

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:
Pharmaceutical intermediates

Location:
Room 336, Building 7, No. 177 Xingqiao North Road, Xingqiao Street, Linping District, Hangzhou

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

Average lead Time:
14 days

Total Annual Revenue:
Less than $1 million

Total Employees:
Less than 5

Year of Establishment:
2025

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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(3R,4S)-3-(2-Bromoacetyl)-4-ethyl-1-pyrrolidinecarboxylic acid phenylmethyl ester RC00638

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