Hebei R&M Healthcare Company Limitied
We are professional supplier of Ascorbic Acid Powder,Ascorbic Acid Granulation,Sodium Ascorbate Powder,Calcium Ascorbate Powder,Ascorbic Acid Fine Powder,Coated Ascorbic Acid,Sodium Ascorbate Granular
Business Type:Manufacturer
Country/Region:China
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| Names | |
|---|---|
| Pronunciation | /ˈnaɪəsɪn/ |
| Preferred IUPAC namePyridine-3-carboxylic acid[1] | |
Other names
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| Identifiers | |
| CAS Number |
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| 3D model (JSmol) |
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| 3DMet | B00073 |
| Beilstein Reference | 109591 |
| ChEBI |
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| ChEMBL |
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| ChemSpider |
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| DrugBank |
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| ECHA InfoCard | 100.000.401 |
| EC Number | 200-441-0 |
| Gmelin Reference | 3340 |
| IUPHAR/BPS |
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| KEGG |
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| MeSH | Niacin |
| PubChem CID |
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| RTECS number | QT0525000 |
| UNII |
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| InChI[show] | |
| SMILES[show] | |
| Properties | |
| Chemical formula | C 6NH 5O 2 |
| Molar mass | 123.1094 g mol−1 |
| Appearance | White, translucent crystals |
| Density | 1.473 g cm−3 |
| Melting point | 237 °C; 458 °F; 510 K |
| Solubility in water | 18 g L−1 |
| log P | 0.219 |
| Acidity (pKa) | 2.0, 4.85 |
| Isoelectric point | 4.75 |
| Refractive index(nD) | 1.4936 |
| Dipole moment | 0.1271305813 D |
| Thermochemistry | |
| Std enthalpy of formation(ΔfHo298) | −344.9 kJ mol−1 |
| Std enthalpy of combustion(ΔcHo298) | −2.73083 MJ mol−1 |
| Pharmacology | |
| ATC code | C04AC01 (WHO) C10AD02(WHO) |
| License data |
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| Routes of administration | Intramuscular, by mouth |
| Pharmacokinetics: | |
| Biological half-life | 20–45 min |
| Hazards | |
| EU classification(DSD) (outdated) | Xi |
| R-phrases(outdated) | R36/37/38 |
| S-phrases(outdated) | S26, S36 |
| NFPA 704 | 110 |
| Flash point | 193 °C (379 °F; 466 K) |
| Autoignition temperature | 365 °C (689 °F; 638 K) |
| Except where otherwise noted, data are given for materials in their standard state(at 25 °C [77 °F], 100 kPa). | |
