D-Pyroglutamic Acid (H-D-Pyr-OH) CAS 4042-36-8 Purity >98.0% (HPLC)
Shanghai Ruifu Chemical Co., Ltd. is the leading manufacturer of D-Pyroglutamic Acid (H-D-Pyr-OH) (CAS: 4042-36-8) with high quality. Ruifu Chemical can provide worldwide delivery, competitive price, excellent service, small and bulk quantities available. Purchase D-Pyroglutamic Acid, Please contact: alvin@ruifuchem.com
Chemical Name | D-Pyroglutamic Acid |
Synonyms | H-D-Pyr-OH; D-Glutamic Acid Lactam; (R)-5-Oxopyrrolidine-2-Carboxylic Acid; (R)-2-Pyrrolidone-5-Carboxylic Acid; (R)-(+)-2-Pyrrolidone-5-Carboxylic Acid; D-5-Oxo-2-Pyrrolidinecarboxylic Acid |
Stock Status | In Stock, Commercial Production |
CAS Number | 4042-36-8 |
Molecular Formula | C5H7NO3 |
Molecular Weight | 129.12 g/mol |
Melting Point | 158.0~161.0℃ |
Density | 1.458g/cm3 |
Water Solubility | Soluble in Water, Almost Transparency |
COA & MSDS | Available |
Sample | Available |
Place of Origin | Shanghai, China |
Brand | Ruifu Chemical |
Items | Specifications | Results |
Appearance | White Crystals | White Crystals |
Specific Rotation [α]20/D | +10.8°~+12.3° (C=2, H2O) | +11.25° |
Melting Point | 158.0~161.0℃ | 159.0~160.0℃ |
Chloride (Cl) | ≤0.02% | <0.02% |
Sulfate (SO4) | ≤0.02% | <0.02% |
Heavy Metals (Pb) | ≤10ppm | <10ppm |
Arsenic (As2O3) | ≤1ppm | <1ppm |
Iron (Fe) | ≤10ppm | <10ppm |
Loss on Drying | ≤0.50% | 0.15% |
Residue on Ignition | ≤0.10% | 0.07% |
Optical Purity | ≤0.50% L-Enantiomer | <0.50% |
Assay / Analysis Method | 98.0~101.0% | 99.5% |
Infrared Spectrum | Conforms to Structure | Conforms |
Conclusion | This product by inspection accords with the standard AJI-92 |
Package: Bottle, Aluminium foil bag, 25kg/Cardboard Drum, or according to customer's requirement.
Storage Condition: Keep the container tightly closed and store in a cool, dry (2~8℃) and well-ventilated warehouse away from incompatible substances. Protect from light and moisture.
Shipping: Deliver to worldwide by air, by FedEx / DHL Express. Provide fast and reliable delivery.
How to Purchase? Please contact Dr. Alvin Huang: sales@ruifuchem.com or alvin@ruifuchem.com
15 Years Experience? We have more than 15 years of experience in the manufacture and export of a wide range of high quality pharmaceutical intermediates or fine chemicals.
Main Markets? Sell to domestic market, North America, Europe, India, Korea, Japanese, Australia, etc.
Advantages? Superior quality, affordable price, professional services and technical support, fast delivery.
Quality Assurance? Strict quality control system. Professional equipment for analysis include NMR, LC-MS, GC, HPLC, ICP-MS, UV, IR, OR, K.F, ROI, LOD, MP, Clarity, Solubility, Microbial limit test, etc.
Samples? Most products provide free samples for quality evaluation, shipping cost should be paid by customers.
Factory Audit? Factory audit welcome. Please make an appointment in advance.
MOQ? No MOQ. Small order is acceptable.
Delivery Time? If within stock, three days delivery guaranteed.
Transportation? By Express (FedEx, DHL), by Air, by Sea.
Documents? After sales service: COA, MOA, ROS, MSDS, etc. can be provided.
Custom Synthesis? Can provide custom synthesis services to best fit your research needs.
Payment Terms? Proforma invoice will be sent first after confirmation of order, enclosed our bank information. Payment by T/T (Telex Transfer), PayPal, Western Union, etc.
Hazard Symbols Xi - Irritant
Risk Codes
R36/37/38 - Irritating to eyes, respiratory system and skin.
Safety Description
S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S37/39 - Wear suitable gloves and eye/face protection
WGK Germany 3
HS Code 2922421000
D-Pyroglutamic Acid (H-D-Pyr-OH) (CAS: 4042-36-8), amino acids and peptide synthesis reagents, reaction type: solution phase peptide synthesis. Used as an organic synthesis intermediate, pharmaceutical intermediate. Nutritional supplement, nutrition enhancer, dietary supplements, health food additives, pharmaceutical raw material, sport supplements, sport nutrtional supplements, bodybuilding supplement. Due to special wettability, also used in cold cream, cosmetics.