English Name: L-Pyroglutamic acid;5-Oxoproline; 5-Oxopyrrolidine-2-carboxylic acid; L-5-pyrrolidone-2-carboxylic acid; (S)-(-)-2-Pyrrolidone-5-carboxylic acid;
Chemical Name:L-Pyroglutamic acid;5-Oxoproline; 5-Oxopyrrolidine-2-carboxylic acid; L-5-pyrrolidone-2-carboxylic acid; (S)-(-)-2-Pyrrolidone-5-carboxylic
Molecular Formula:C5H7NO3;
Molecular Weight:129.11;
CAS:98-79-3;
EINECS: 202-700-3;
Products Content:99.3%;
Chemical Property: Colorless crystal. Melting Point 159-162°C. Soluble in water, alcohol, acetone and acetic acid, slightly soluble in ethyl acetate, insoluble in ether
Product Standard:USP/FCC/EP;
Specification:25KG/barrel;
Main Use: 1.Pharmaceutical intermediates, medical supplements. 2. Has a strong moisturizing capabilities, strong penetration in the skin. As a high-nutrient in nature, easily absorbing additives, the skin conditioning of Use, as a moisturizing agent.
Property | Standard |
Appearance | White powder |
Rotary rate (a)D20 (C=5H2O) | -11.0º ~ -12.0º |
Melting Point (ºC) | 159ºC to 162 ºC |
Chlorids (C1) | <0.02% |
Amonnium salt (NH4 | <0.02% |
Sulphur salts (SO4 | <0.02% |
Heavy Metal (Pb) | <10ppm |
Iron (Fe) | <10ppm |
Arsenic salt (As2O3) | <1 PPM |
Drying Loss | <0.50% |
Burning residues | <0.2% |
Content | 99.0-101.0% |
Frequently Asked Questions
Q1: May I get one sample before placing order?
Re: Yes, Sample are available. For normal products, samples are for free and you just need to bear the freight;
For those high value products, you just need to freight and certain product cost. When we both cooperate for
some times or when you are our VIP customer, free sample will be offered when you need.
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or by air. Usually it will cost 3-5days that you can get the goods after delivery.For large quantity products,
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Re: Yes. If needed, we'd like to use label or package according to your requirement.
Q5: How can you guarantee the goods you offer is qualified?
Re: We always believe honesty and responsibility are basis of one company, so whatever products we provide
for you all are qualified. We will have goods tested and provide COA before delivery for sure.