| CAS No.: | 98-79-3 |
|---|---|
| Formula: | C5h7no3 |
| EINECS: | 202-700-3 |
| Type: | Synthesis Material Intermediates |
| Appearance: | Powder |
| Quality: | Refined |
| Samples: |
|---|
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The details of 99% Purity Hot Selling CAS 98-79-3 for Food Additives L-Pyroglutamic Acid with best price
Product Name: L-Pyroglutamic acid
Synonyms: (5s)-2-oxopyrrolidine-5-carboxylicacid;(s)-5-oxo-2-pyrrolidinecarboxylicacid;(s)-pyroglutamicacid;2-benzothiazolesulfenicacidmorpholide;2-l-pyrrolidone-5-carboxylicacid;2-oxopyrrolidine-5-carboxylicacid;2-pyrrolidone-5-carboxylate;glutimicacid
CAS: 98-79-3
MF: C5H7NO3
MW: 129.11
EINECS: 202-700-3
Melting point 160-163 °C(lit.)
alpha -27.5 º (c=10, 1 N NaOH)
Boiling point 239.15°C (rough estimate)
density 1.3816 (rough estimate)
vapor pressure 0.002Pa at 25ºC
refractive index -10 ° (C=5, H2O)
storage temp. 2-8°C
solubility H2O: 1 M at 20 °C, clear, colorless
form Crystalline Powder
pka 3.32(at 25ºC)
color White to off-white
PH 1.7 (50g/l, H2O, 20ºC)
Specification of 99% Purity Hot Selling CAS 98-79-3 for Food Additives L-Pyroglutamic Acid with best price
| Appearance | White to almost white crystalline powder |
| Loss on drying | 0.3% |
| Heavy metal | <10 ppm |
| Ash content | 0.1% |
| Purity(HPLC) | 99.9% |
Application of High Quality Keratin CAS 68238-35-7 with best price
L-Pyroglutamic acid is used in the synthesis of:
Nonproteinogenic amino acids such as (3S,4R)-3,4-dimethyl-L-pyroglutamic acid and (3S,4R)-3,4-dimethyl-L-glutamine.
Chiral N-heterocyclic carbenes (NHCs) as catalysts for the asymmetric dimerization of alkylarylketenes to give the corresponding α-quaternary β-alkylidenyl-β-lactones.
It is also used in the total synthesis of (−)-stemoamide and celogentin C.
It can be used as a kind of intermediates of organic synthesis as well as food additives.
It is used in food, medicine, cosmetics and other industries.
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