Shanghai Nianxing Industrial Co., Ltd
China
Product Name: propan-2-yl (2S)-5-oxopyrrolidine-2-carboxylate
Price: Check
Purity: 95.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: L-Proline, 5-oxo-,1-methylethyl ester
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

52989-50-1

52989-50-1 structure

52989-50-1 structure

Name: L-Proline, 5-oxo-,1-methylethyl ester
Chemical Name: propan-2-yl (2S)-5-oxopyrrolidine-2-carboxylate
CAS Number: 52989-50-1
Molecular Formula: C₈H₁₃NO₃
Molecular Weight: 171.19400
Create Date: 2016-09-28 00:35:21
Modify Date: 2025-08-26 12:10:08

Name	propan-2-yl (2S)-5-oxopyrrolidine-2-carboxylate
Synonyms	pyroglutamic acid iso-propyl ester L-Pyroglutamic acid isopropyl ester (S)-iso-Propyl pyroglutamate 5-Oxo-L-proline 1-methylethyl ester isopropyl 5-oxo-L-prolinate isopropyl pyrrolidin-5-one-2(S)-carboxylate isopropyl (+)-L-pyroglutamate isopropyl (S)-(-)-2-pyrrolidone-5-carboxylate

Density	1.124g/cm3
Boiling Point	314.5ºC at 760mmHg
Molecular Formula	C₈H₁₃NO₃
Molecular Weight	171.19400
Flash Point	144ºC
Exact Mass	171.09000
PSA	55.40000
LogP	0.54540
Index of Refraction	1.465

HS Code	2933790090

67-63-0 structure

67-63-0

98-79-3 structure

98-79-3

~96%

52989-50-1 structure

52989-50-1

Literature: Bristol-Myers Squibb Company Patent: US2008/107625 A1, 2008 ; Location in patent: Page/Page column 38-39 ;

Precursor 2
67-63-0 98-79-3
DownStream 0

HS Code	2933790090
Summary	2933790090. other lactams. VAT:17.0%. Tax rebate rate:9.0%. . MFN tariff:9.0%. General tariff:20.0%

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