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Methyl L-pyroglutamate

Product Name
Methyl L-pyroglutamate
CAS No.
4931-66-2
Chemical Name
Methyl L-pyroglutamate
Synonyms
PYR-OME;pGlu-OMe;L-PYR-OME;H-PYR-OME;AKOS 91512;H-PGLU-OME;Pyr-OMe-OH;H-L-Pyr-OMe;L-Pyr-OMe-OH;H-pyroGlu-OMe
CBNumber
CB2771106
Molecular Formula
C6H9NO3
Formula Weight
143.14
MOL File
4931-66-2.mol
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Methyl L-pyroglutamate Property

Boiling point:
90°C (0.3 mmHg)
alpha 
10.5 º (c=1, EtOH)
Density 
1.226
refractive index 
1.486
Flash point:
>110°C
storage temp. 
Inert atmosphere,Room Temperature
solubility 
Chloroform (Slightly), Ethanol (Sparingly)
form 
Liquid
pka
14.65±0.40(Predicted)
color 
Pale yellow
optical activity
[α]20/D +10.5°, c = 1 in ethanol
InChI
1S/C6H9NO3/c1-10-6(9)4-2-3-5(8)7-4/h4H,2-3H2,1H3,(H,7,8)/t4-/m0/s1
InChIKey
HQGPKMSGXAUKHT-BYPYZUCNSA-N
SMILES
COC(=O)[C@@H]1CCC(=O)N1
CAS DataBase Reference
4931-66-2(CAS DataBase Reference)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36
WGK Germany 
3
HS Code 
29337900
Storage Class
10 - Combustible liquids
Hazard Classifications
Eye Irrit. 2
Skin Irrit. 2
STOT SE 3
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
463396
Product name
Methyl (S)-(+)-2-pyrrolidone-5-carboxylate
Purity
97%
Packaging
5g
Price
$127
Updated
2023/06/20
TCI Chemical
Product number
M2198
Product name
Methyl L-Pyroglutamate
Purity
>98.0%(GC)
Packaging
25g
Price
$61
Updated
2025/07/31
TCI Chemical
Product number
M2198
Product name
Methyl L-Pyroglutamate
Purity
>98.0%(GC)
Packaging
100g
Price
$168
Updated
2025/07/31
TRC
Product number
M325948
Product name
Methyl(S)-Pyroglutamate
Packaging
50g
Price
$250
Updated
2021/12/16
TRC
Product number
M325948
Product name
Methyl(S)-Pyroglutamate
Packaging
10g
Price
$160
Updated
2021/12/16
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Methyl L-pyroglutamate Chemical Properties,Usage,Production

Chemical Properties

Brown Oil

Uses

Methyl (S)-Pyroglutamate (cas# 4931-66-2) is a compound useful in organic synthesis.

Methyl L-pyroglutamate Preparation Products And Raw materials

Raw materials

Preparation Products

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Methyl L-pyroglutamate Suppliers

Shanghai Boyle Chemical Co., Ltd.
Tel
021-50182298 021-50180596
Fax
+86-21-57758967
Email
sales@boylechem.com
Country
China
ProdList
2208
Advantage
55
J & K SCIENTIFIC LTD.
Tel
18210857532; 18210857532
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
4006356688 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40228
Advantage
62
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30123
Advantage
84
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24529
Advantage
81
ShangHai DEMO Chemical Co.,Ltd
Tel
400-021-7337 2355568890
Fax
0086-21-50182339
Email
sales@demochem.com
Country
China
ProdList
2572
Advantage
57
Ark Pharm, Inc.
Tel
847-367-3680
Fax
847-367-3681
Email
sales@arkpharminc.com
Country
United States
ProdList
1670
Advantage
56
Beijing HwrkChemical Technology Co., Ltd
Tel
010-89508211 18501085097
Fax
010-89508210
Email
sales.bj@hwrkchemical.com
Country
China
ProdList
9411
Advantage
55
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44801
Advantage
61
Capot Chemical Co., Ltd
Tel
+86 (0) 571 85 58 67 18
Fax
0086-571-85864795
Country
China
ProdList
18207
Advantage
66
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View Lastest Price from Methyl L-pyroglutamate manufacturers

Sichuan HongRi Pharma-Tech Co.,Ltd
Product
Pyr-Ome-OH 4931-66-2
Price
US $0.00-0.00/kg
Min. Order
1kg
Purity
98%
Supply Ability
1T+
Release date
2024-04-03
Hebei Chuanghai Biotechnology Co,.LTD
Product
Methyl L-pyroglutamate 4931-66-2
Price
US $5.00-2.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
10000kg
Release date
2024-08-13
Career Henan Chemical Co
Product
Methyl L-pyroglutamate 4931-66-2
Price
US $7.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
100kg
Release date
2018-12-24

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