抗坏血酸 ≥97%
Ascorbic acid
品牌：桔子
产品编号：S27530
CAS号：50-81-7
分子式：C6H8O6
分子量：176.12
MDL：MFCD00064328
| 产品名称 : | 抗坏血酸 |
|---|---|
| 英文名称 : | Ascorbic acid |
| 参考名称 : | (R)-5-((S)-1,2-二羟基乙基)-3,4-二羟基呋喃-2(5H)-酮 |
| 参考英文名称 : | (R)-5-((S)-1,2-Dihydroxyethyl)-3,4-dihydroxyfuran-2(5H)-one |
| CAS号 : | 50-81-7 |
| 分子式 : | C6H8O6 |
| 分子量 : | 176.12 |
| SMILES : | C([C@@H]([C@@H]1C(=C(C(=O)O1)O)O)O)O |
| MDL NO : | MFCD00064328 |
| PubChem CID : | 54670067 |
| InChIKey : | CIWBSHSKHKDKBQ-JLAZNSOCSA-N |
| 储存条件 : | RT |
实验性质
| 外观 / 形态 : | L-ascorbic acid is a white to very pale yellow crystalline powder with a pleasant sharp acidic taste. Almost odorless. (NTP, 1992)；Dry Powder; CBI；White to pale yellow, odourless crystalline powder；White solid; [Merck Index] White to yellow odorless solid; [ICSC] Powder; [Sigma-Aldrich MSDS]；Solid；ODOURLESS WHITE-TO-SLIGHTLY-YELLOW CRYSTALS OR POWDER. |
|---|---|
| 颜色 / 形态 : | Crystals (usually plates, sometimes needles, monoclinic system)；White crystals (plates or needles)；White to slightly yellow crystals or powder ... gradually darkens on exposure to light |
| 气味 : | Odorless |
| 熔点 : | 374 to 378 °F (decomposes) (NTP, 1992)；191 dec °C；Between 189 °C and 193 °C with decomposition；190-192 °C (some decomposition)；Melting point = 465.15 deg K, decomposes.；191 °C |
| 溶解性 : | greater than or equal to 100 mg/mL at 73 °F (NTP, 1992)；400000 mg/L (at 40 °C)；Insoluble in ether, chloroform, benzene, petroleum ether, oils, fats, fat solvents；1 g dissolves in about 3 ml of water.；The solubility in g/mL is 0.33 in water, 0.033 in 95 wt% ethanol, 0.02 in absolute ethanol, 0.01 in glycerol USP, 0.05 in propylene glycol.；Solubility in water: 80% at 100 °C, 40% at 45 °C；400 mg/mL at 40 °C；Solubility in water, g/100ml at 20 °C: 33 (freely soluble) |
| 密度 : | 1.65 (NTP, 1992) - Denser than water; will sink；1.65 g/cu cm at 25 °C；Density (at 25 °C): 1.65 g/cm³ |
| LogP : | -1.85；log Kow = -1.85；-2.15；-1.84 |
| 旋光性 : | [α]D/20 between + 20,5° and + 21,5° (10 % w/v aqueous solution)；Specific optical rotation (c = 1 in water): +20.5 to +21.5 deg at 25 °C/D; (c = 1 in methanol): +48 deg at 23 °C/D；Specific optical rotation: +24 deg at 20 °C/D (in water, 1%) |
| 自燃温度 : | 1220 °F (NTP, 1992)；380 °C |
| 热分解说明 : | When heated to decomposition it emits acrid smoke and irritating fumes.；190-192 °C |
| pH : | Between 2,4 and 2,8 (2 % aqueous solution)；pH = 3 (5 mg/mL); pH = 2 (50 mg/mL) |
| 解离常数 pKa : | 4.7 (at 10 °C)；pK1 = 4.17; pK2 = 11.57；pKa = 4.70 at 10 °C |
计算性质
| LogP : | -1.6 |
|---|---|
| 极性表面积 (TPSA) : | 107 Ų |
| 氢键供体数 : | 4 |
| 氢键受体数 : | 6 |
| 可旋转键数 : | 2 |
| 精确质量 : | 176.03208797 Da |
| 重原子数 : | 12 |
| 分子复杂度 : | 232 |
资料来源：抗坏血酸产品资料页；来源页标注 PubChem CID 54670067，资料日期 2026-10-11。
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