DL-Pyroglutamic acid 147-87-1

Date：2021-12-01 Categories：related product

Post Date:

Nov 30,2021

Expiry Date:

Nov 30,2022

Detailed Description:

Cas No. :149-87-1
Quantity: 1Metric Tons

Payment Method: T/T
Product Name: H-DL-Pyr-OH CAS#: 149-87-1
Synonyms: DL-Pyroglutamic acid Molecular Formula: C5H7NO3
Molecular Weight: 129

Specification: (Reference Standard: AJI92)
Items
Standard
Analysis data

Appearance
White crystalline powder
Conforms

Melting Point(ºC)
160.0 to 162.0ºC
160.5ºC

Chloride(C1)
Not more than0.02%
0.01%

Ammonium(NH4)
Not more than0.02%
Conforms

Sulfate(SO4)
Not more than 0.02%
0.005%

Heavy metals(Pb)
Not more than 10ppm
Conforms

Iron(Fe)
Not more than 10ppm
6ppm

Arsenic(As2O3)
Not more than 1ppm
Conforms

Loss on drying
Not more than 0.50%
0.36%

Residue on ignition
Not more than0.1%
Conforms

Assay
98.0-101.0%

CAS Registry Number:	149-87-1
Synonyms:	;DL-2-Pyrrolidone-5-Carboxylic Acid;Dl-5-Oxoproline;H-Dl-Pyr-Oh;Dl-Proline, 5-Oxo-;(+/-)-2-Pyrrolidone-5-Carboxylic Acid;2-Pyrrolidone-5-Carboxylic Acid;(+/-)-2-Pyrrolidinone-5-Carboxylic Acid;5-Oxo-Dl-Proline;Dl-A-Pyroglutamic Acid;Dl-Glutamic Acid Lactam;5-oxo-L-proline;
Molecular Formula:	C₅H₇NO₃
Molecular Weight:	129.114
Molecular Structure:
Hazard Symbols:	Xi:Irritant;
Risk Codes:	R36/37/38:;
Safety Description:	S26:; S37/39:;

Tags：DL-Pyroglutamic acid 147-87-1

149-87-1