2H-pyran-2-carboxylate,, Promotion Season Now in Store and Free Sample for Testing with Factory Price
- Chemical Name: Hyaluronic acid
- CAS No.: 9004-61-9
- Molecular Fomula: ：C14H22NNaO11
- Molecular weight：403.31
- Appearance:White amorphous solid
- Sample：Available
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Basic Info of 2H-pyran-2-carboxylate,
Basic Info
Numbering system
Properties
Safety Info
Basic Info
| Chemical Name | hyaluronic acid |
| Synonyms | Hyaluronic Acid Sodium Salt; |
| CAS No. | 9004-61-9 |
| Molecular Formula | C28H44N2O23 |
| Molecular Weight | 776.64900 |
| PSA | 399.71000 |
| LogP | -8.49480 |
Numbering system
| UNII | S270N0TRQY |
Properties
| Appearance & Physical State | White powder |
| Density | 1.78 g/cm3 |
| Boiling Point | 1274.4ºC at 760 mmHg |
| Flash Point | 724.5ºC |
| Refractive Index | 1.666 |
| Stability | Stable under recommended storage conditions. |
| Storage Condition | -20ºC |
Safety Info
| Safety Statements | S22; S24/25 |
| HS Code | 3004909090 |
What is Hyaluronic acid?
- With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is 2H-pyran-2-carboxylate which has developed particularly rapidly in recent years. Do you know about 2H-pyran-2-carboxylate?
- The official answer：2H-pyran-2-carboxylate is a white amorphous solid, odorless and tasteless, with hygroscopic properties. It is soluble in water and insoluble in organic solvents. The specific spin of the aqueous solution is -70°-80°. Most prominently, it has high viscosity properties, and the viscosity of its solution, when exposed to the following conditions, can undergo an irreversible decrease: pH lower or higher than 7; the presence of hyaluronidase; the presence of many reducing substances such as cysteine, pyrogallic acid, ascorbic acid or heavy metal ions; (4) ultraviolet light, electron beam irradiation, etc. A polymer consisting of a disaccharide repeating unit of (1→3)-2-acetamido-2-deoxy-β-D-glucose-(1→4)-O-β-D-glucuronide, which on hydrolysis produces a hexosamine (e.g. glucosamine) and a glucuronide (e.g. glucuronide). Originally used only as a biochemical reagent, it has become a biochemical drug with high clinical value. It is widely found in nature in various animal tissues: connective tissue, umbilical cord, skin, human serum, corpuscles, synovial fluid, brain, cartilage, vitreous humor of the eye, human urine, chicken embryo, rabbit oocytes, arterial and venous walls. 2H-pyran-2-carboxylate is often bound to proteins and coexists with other mucopolysaccharides. In the vitreous and synovial fluid, it is present in soluble form and in the corpuscles and umbilical cords in gel form.
What’s the application of Hyaluronic acid?
- It is a necessary drug for ophthalmology “viscous surgery”. It is used in cataract surgery, and its sodium salt can be easily retained in the anterior chamber to maintain a certain depth of the anterior chamber, so as to maintain a clear surgical field, reduce post-surgical inflammation and complications, and thus improve the effect of surgical vision correction. It is also used for complex retinal detachment surgery. It is also widely used in cosmetics as an ideal natural moisturizing factor to improve skin nutrition and make skin glowing and tender. It is used as a high-grade cosmetic additive and also for medical purposes: it is used as a moisturizing agent in creams, frosts, milk liquids, masks, and serums.
Conclusion
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Keywords of Hyaluronic acid
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