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DL-Pyroglutamic acid 147-87-1

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  Post Date: Jan 25,2025
  Expiry Date: Jan 25,2026
  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: 149-87-1 DL-Pyroglutamic acid
  Hazard Symbols:  Xi:Irritant;
  Risk Codes: R36/37/38:;
  Safety Description: S26:;
S37/39:;

  Company: SICHUAN TONGSHENG AMINO ACID CO., LTD     [ China ]          
  Contact: Ronghu Chen
  Tel: 0838-2274206/2809458
  Fax: 0838-2274207
  Email: sales@biots.cn
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