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D-Pyroglutamic acid

D-Pyroglutamic acid
D-Pyroglutamic acid structure
CAS No.
4042-36-8
Chemical Name:
D-Pyroglutamic acid
Synonyms
D-PYR-OH;223-735-0;H-D-PYR-OH;D- pGlu-OH;H-D-PGLU-OH;5-OXO-D-PROLIN;D-5-Oxoproline;D-Pyroglutamic;5-OXO-D-PROLINE;(R)-5-Oxoproline
CBNumber:
CB0271107
Molecular Formula:
C5H7NO3
Formula Weight:
129.11
MOL File:
4042-36-8.mol

D-Pyroglutamic acid Properties

Melting point:
155-162 °C
alpha 
27.5 º (c=10,1N NaOH)
Boiling point:
239.15°C (rough estimate)
Density 
1.3816 (rough estimate)
refractive index 
10 ° (C=5, H2O)
storage temp. 
Store at 0-5°C
optical activity
[α]22/D +10°, c = 1.5 in H2O
Water Solubility 
soluble
Merck 
14,8001
BRN 
82133
InChIKey
ODHCTXKNWHHXJC-GSVOUGTGSA-N
CAS DataBase Reference
4042-36-8(CAS DataBase Reference)
SAFETY
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36-37/39
WGK Germany  3
HS Code  29339900
Symbol(GHS):
Signal word:
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405 Store locked up.

D-Pyroglutamic acid price More Price(6)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 422614 (R)-(+)-2-Pyrrolidone-5-carboxylic acid 95% 4042-36-8 10g $107 2018-11-13 Buy
TCI Chemical P1354 D-Pyroglutamic Acid >98.0%(T) 4042-36-8 5g $67 2018-11-22 Buy
TCI Chemical P1354 D-Pyroglutamic Acid >98.0%(T) 4042-36-8 25g $202 2018-11-22 Buy
Alfa Aesar B24678 (R)-(+)-2-Pyrrolidinone-5-carboxylic acid, 98+% 4042-36-8 25g $214 2018-11-13 Buy
Alfa Aesar B24678 (R)-(+)-2-Pyrrolidinone-5-carboxylic acid, 98+% 4042-36-8 5g $61.5 2018-11-13 Buy

D-Pyroglutamic acid Chemical Properties,Uses,Production

Chemical Properties

white to light yellow crystal powde

Uses

Serves as a building block in the synthesis of diphthamide

Definition

ChEBI: The D-enantiomer of 5-oxoproline.

Purification Methods

Purify R-pyroglutamic acid by dissolving it in H2O, filtering, passing the filtrate through Dowex 50 (H+ form), washing with H2O, pooling washings, evaporating, removing H2O azeotropically with Me2CO and *C6H6, washing the residue with Et2O and recrystallising from EtOH/pet ether. [Pradeller et al. Collect Czech Chem Commun 42 79, 80 1977, Beilstein 22/6 V 7.]

D-Pyroglutamic acid Preparation Products And Raw materials

Raw materials

Preparation Products


D-Pyroglutamic acid Suppliers

Global( 286)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Shenzhen Sendi Biotechnology Co.Ltd.
0755-23311925 18102838259
0755-23311925 Abel@chembj.com CHINA 3217 55
Henan DaKen Chemical CO.,LTD.
+86-371-55531817
info@dakenchem.com CHINA 22043 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 20786 55
Mainchem Co., Ltd.
+86-0592-6210733
+86-0592-6210733 sales@mainchem.com CHINA 32651 55
Chemwill Asia Co.,Ltd.
86-21-51086038
86-21-51861608 chemwill_asia@126.com;sales@chemwill.com;chemwill@hotmail.com;chemwill@gmail.com CHINA 24118 58
Hubei Jusheng Technology Co.,Ltd.
86-188-71490254
peter@hubeijusheng.com CHINA 20229 58
Accela ChemBio Inc.
(+1)-858-699-3322
(+1)-858-876-1948 info@accelachem.com United States 12234 58
Haihang Industry Co.,Ltd
86-531-88032799
+86 531 8582 1093 export@haihangchem.com CHINA 4558 58
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 19997 58
Sichuan Tongsheng Amino acids Co.,Ltd. +86-838-2274206/2809458
+86-838-2274207 sales@biots.cn;amino@vip.sina.com;pharm@biots.cn China 400 66

View Lastest Price from D-Pyroglutamic acid manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-08-02 D-Pyroglutamic acid
4042-36-8
US $20.00 / KG 10KG 98% 100kg career henan chemical co
2018-08-02 D-Pyroglutamic acid
4042-36-8
US $20.00 / KG 10KG 99% 20kg career henan chemical co

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