Shanghai Ruifu Chemical Co., Ltd. is the leading manufacturer of DL-Pyroglutamic Acid (CAS: 149-87-1) with high quality. Ruifu Chemical supplys a series of amino acids. Ruifu can provide worldwide delivery, competitive price, small and bulk quantities available. Purchase DL-Pyroglutamic Acid, Please contact: alvin@ruifuchem.com
| Chemical Name | DL-Pyroglutamic Acid |
| Synonyms | H-DL-Pyr-OH; 2-Pyrrolidone-5-Carboxylic Acid; DL-Glutamic Acid Lactam; 5-Oxopyrrolidine-2-Carboxylic Acid; DL-5-Oxo-2-Pyrrolidinecarboxylic Acid |
| Stock Status | In Stock, Production Capacity to Tons per Month |
| CAS Number | 149-87-1 |
| Molecular Formula | C5H7NO3 |
| Molecular Weight | 129.12 g/mol |
| Melting Point | 180.0~185.0℃(lit.) |
| Density | 1.38 |
| Water Solubility | Soluble in Water, Almost Transparency |
| Storage Temp. | Cool & Dry Place (2~8℃) |
| COA & MSDS | Available |
| Category | Amino Acids and Peptide Synthesis Reagents |
| Brand | Ruifu Chemical |
| Items | Inspection Standards | Results |
| Appearance | White Crystalline Powder | Complies |
| Specific Rotation [α]20/D | -0.3° to +0.3° (C=2, H2O) |
0° |
| Melting Point | 180.0~185.0℃ | 183.0~185.0℃ |
| Chloride (Cl) | ≤0.02% | 0.012% |
| Sulfate (SO4) | ≤0.02% | 0.005% |
| Ammonium (NH4) | ≤0.02% | <0.02% |
| Heavy Metals (Pb) | ≤10ppm | <10ppm |
| Iron (Fe) | ≤10ppm | <10ppm |
| Arsenic (As2O3) | ≤1ppm | <1ppm |
| Loss on Drying | <0.50% | 0.17% |
| Residue on Ignition | <0.20% | 0.08% |
| Purity / Analysis Method | >99.0% (HPLC) | 99.3% |
| Purity (NonaqueousTitration) | 98.5~101.5% | Complies |
| Infrared Spectrum | Conforms to Structure | Complies |
| Conclusion | This product by inspection accords with the standard AJI92 | |
Package: Bottle, Aluminium foil bag, 25kg/Cardboard Drum, or according to customer's requirement.
Storage Condition: Store in sealed containers at cool and dry (2~8℃) warehouse away from incompatible substances. Protect from light and moisture.
Shipping: Deliver to worldwide 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.
Risk Codes
R22 - Harmful if swallowed
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 2922491990
Hazard Class IRRITANT
DL-Pyroglutamic Acid (CAS: 149-87-1) is used in peptide synthesis, reaction type: solution phase peptide synthesis. Also used as an organic synthesis intermediate, pharmaceutical intermediate, biochemical reagent or chemical reagent.
An oxoproline having the oxo group placed at the 5-position. It is an intermediate metabolite in the glutathione cycle. DL-Pyroglutamic Acid is used in the preparation of AZT steroid conjugates as potent anti-HIV agents.