Chemical Properties:
Package: Fluorinated Bottle, Aluminium foil bag, 25kg/Cardboard Drum, or according to customer's requirement. Storage Condition: Store in sealed containers at cool, dry and ventilated warehouse away from incompatible substances. Protect from light and moisture.Shanghai Ruifu Chemical Co., Ltd. is the leading manufacturer of L-Pyroglutamic Acid (H-Pyr-OH) (CAS: 98-79-3) with high quality. Ruifu Chemical supplys a series of amino acids. We can provide worldwide delivery, small and bulk quantities available. Purchase H-Pyr-OH, Please contact: alvin@ruifuchem.comDescription:
Package & Storage:
| Chemical Name | L-Pyroglutamic Acid |
| Synonyms | H-Pyr-OH; Laevo-Pyroglutamic Acid; L-Glutamic Acid Lactam; (S)-5-Oxopyrrolidine-2-Carboxylic Acid; (S)-2-Pyrrolidone-5-Carboxylic Acid; Pyrrolidonecarboxylic Acid; Pidolic Acid; 5-Oxo-L-Proline |
| Stock Status | In Stock, Production Capacity 50 Tons per Month |
| CAS Number | 98-79-3 |
| Molecular Formula | C5H7NO3 |
| Molecular Weight | 129.12 g/mol |
| Melting Point | 158.0 to 161.0℃ |
| Sensitive | Hygroscopic |
| Water Solubility | Soluble in Water |
| Solubility | Soluble in Alcohol, Acetone |
| COA & MSDS | Available |
| Classification | Unusual Amino Acids |
| Brand | Ruifu Chemical |
Advantages:
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.FAQ:
Stable Supply: Maintain reasonable stock
Professional Service: One stop purchasing service
Technical Support: Technology solution available
Custom Synthesis Service: Ranged from grams to kilos
Fast Delivery: If within stock, three days delivery guaranteed
High Quality: Established a complete quality assurance system
Sufficient Capacity: Sufficient facilities and technicians
OEM Package: Custom package and label available
Specifications:
| Items | Inspection Standards | Results |
| Appearance | White Crystalline Powder | Conforms |
| Identification | Conforms | Conforms |
| Transmittance | ≥98.0% | 98.4% |
| Melting Point | 158.0 to 161.0℃ | 159.0 to 160.0℃ |
| Specific Rotation [α]20/D | -11.0° to -12.0° (C=2, H2O) | -11.7° |
| Chloride (Cl) | ≤0.020% | <0.020% |
| Sulfate (SO4) | ≤0.020% | <0.020% |
| Ammonium (NH4) | ≤0.020% | <0.020% |
| Iron (Fe) | ≤10ppm | <10ppm |
| Heavy Metals (Pb) | ≤10ppm | <10ppm |
| Arsenic (As2O3) | ≤1.0ppm | <1.0ppm |
| Loss on Drying | ≤0.50% | 0.20% |
| Residue on Ignition | ≤0.10% | 0.05% |
| Assay | 99.0% to 101.0% | 99.5% |
| Conclusion | This Product by Inspection Accords with the AJI 97 Standard | |
98-79-3 - Risk and Safety:
Application:
Hazard Symbols Xi - Irritant Risk Codes 36/37/38 - 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. S36 - Wear suitable protective clothing. S37/39 - Wear suitable gloves and eye/face protection WGK Germany 3 RTECS TW3710000 FLUKA BRAND F CODES 21 TSCA Yes HS Code 2922491990 Hazard Class IRRITANT L-Pyroglutamic Acid (H-Pyr-OH) (CAS: 98-79-3) is the levo-isomer of Pyroglutamic acid, is an amino acid that occurs naturally in the body. It is present in the brain, spinal fluid, skin and blood. pyroglutamic acid is one of the major components of natural moisturizing factor of the skin, its moisturizing ability is far stronger than glycerin and propylene glycol. Moreover, it is non-toxic, non-irritating, and is an excellent raw material for modern skin care, and hair care cosmetics. Pyroglutamic acid also has inhibitory effect on the tyrosine oxidase activity, and thus preventing "melanoidins" substance from being deposited in the skin, and having a whitening effect on the skin. It has a keratin softening effect which can be used in nail cosmetics. In addition to be applied in cosmetics, L-Pyroglutamic Acid derivatives can also have reaction with a number of other organic compounds for synthesis of derivatives. It also has some special effect on the surface activity and brilliant effect. Moreover, it can also be used as surfactants for detergents; as a chemical reagent, it can be used for the resolution of racemic amines; it can also be used as a kind of organic intermediates. L-Pyroglutamic Acid is an amino acid that is used in the synthesis of peptides. It has also been observed to convert when placed at the N-terminus in vivo to create IgG2 antibodies. A building block for pharmaceuticals and asymmetric synthesis. L-Pyroglutamic Acid 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.Process Flow Chart of L-Pyroglutamic Acid:
