Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Methyl L-Pyroglutamate
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

BioBioPha
China
Product Name: Methyl L-pyroglutamate
Price: ￥Inquiry/5mg
Purity: 98.0%
Stocking Period: 10 Day
Contact: Xueping-Zheng
Email: 1477035482@qq.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: Methyl L-Pyroglutamate
Price: ￥348.0/25g ￥118.0/5g ￥478.0/5mg
Purity: 95.0%
Stocking Period: 1 Day
Contact: Liu jia
Email: 2130147988@qq.com

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

4931-66-2

4931-66-2 structure

4931-66-2 structure

Name: Methyl L-Pyroglutamate
Chemical Name: Methyl L-Pyroglutamate
CAS Number: 4931-66-2
Molecular Formula: C₆H₉NO₃
Molecular Weight: 143.141
Catalog: Biochemical Amino acids and their derivatives Glutamic acid derivative
Create Date: 2018-04-26 08:00:00
Modify Date: 2025-08-26 13:36:17
Methyl L-pyroglutamate ((S)-Methyl 5-oxopyrrolidine-2-carboxylate;L-Pyroglutamic acid methyl ester) is isolated from P. oleracea and has anti-inflammatory activity[1].

Name	Methyl L-Pyroglutamate
Synonyms	L-Pyroglutamic Acid Methyl Ester DL-Proline, 5-oxo-, methyl ester EINECS 225-567-3 Methyl (S)-(+)-2-Pyrrolidone-5-carboxylate methyl (2S)-5-oxopyrrolidine-2-carboxylate (S)-5-Oxopyrrolidine-2-carboxylic Acid Methyl Ester MFCD00080931 Methyl (S)-5-Oxopyrrolidine-2-carboxylate L-Proline, 5-oxo-, methyl ester Methyl 5-oxo-L-prolinate L-Pyroglutamic acid methylester

Description	Methyl L-pyroglutamate ((S)-Methyl 5-oxopyrrolidine-2-carboxylate;L-Pyroglutamic acid methyl ester) is isolated from P. oleracea and has anti-inflammatory activity[1].
Related Catalog	Research Areas >> Others Signaling Pathways >> Others >> Others
References	[1]. Kim KH, et al. 1-Carbomethoxy-β-Carboline, Derived from Portulaca oleracea L., Ameliorates LPS-Mediated Inflammatory Response Associated with MAPK Signaling and Nuclear Translocation of NF-κB.Molecules. 2019 Nov 7;24(22). pii: E4042.

Density	1.2±0.1 g/cm3
Boiling Point	304.7±35.0 °C at 760 mmHg
Molecular Formula	C₆H₉NO₃
Molecular Weight	143.141
Flash Point	138.1±25.9 °C
Exact Mass	143.058243
PSA	55.40000
LogP	-1.92
Vapour Pressure	0.0±0.6 mmHg at 25°C
Index of Refraction	1.465

Symbol	GHS07
Signal Word	Warning
Hazard Statements	H315-H319-H335
Precautionary Statements	P261-P305 + P351 + P338
Personal Protective Equipment	Eyeshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes	Xi:Irritant;
Risk Phrases	R36/37/38
Safety Phrases	S26-S36
RIDADR	NONH for all modes of transport
HS Code	2933790090

Precursor 10
98-79-3 67-56-1 149-87-1 77-76-9
108963-94-6 7664-93-9 7757-82-6 75857-94-2
88668-76-2 108963-96-8
DownStream 10
106191-02-0 42435-88-1 364750-80-1 59936-29-7
145414-30-8 51693-17-5 64700-65-8 4931-66-2
4931-68-4 84285-34-7

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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