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DL -苹果酸
产品价格查看更多规格...
| 产品编号 | 包装单位 | 单价(元) | 国内现货 | 国外库存 | 询价单 |
| 3079023 | 1 KG | 1081 | 2-5天 | 4-6周 | |
| 3079023 | 25 KG | 5360 | 2-5天 | 4-6周 |
产品别名
6915-15-7
(±)-2-Hydroxysuccinic acid
(±)-2-羟基琥珀酸
结构式
基本信息
| Linear Formula【线性分子式】 | HO2CCH2CH(OH)CO2H |
| Molecular weight | 134.09 |
| Beilstein | 1723539 |
| EC number【EC 号】 | 230-022-8 |
| MDL number | MFCD00064212 |
| PubChem Substance ID【PubChem化学物质编号】 | 57648231 |
| NACRES | NA.25 |
| Quality【质量】 | meets analytical specification of FCC, E296 |
| Application【应用】 | DL-Malic acid is an organic acid used for studying the impact on ultrasound pasteurization. It has also been used to culture Pichia membraneafaciens. |
| Biochem/physiol Actions【生化/生理作用】 | Malic acid is a dicarboxylic acid and an important regulatory metabolite. It has been implicated in process of fruit ripening. Malic acid is important for the starch metabolism; low malic acid content results in transient accumulation of starch. Mitochondrial-malate metabolism modulates ADP-glucose pyrophosphorylase activity and redox status of plastids. |
产品性质
| Quality Level【质量水平】 | 200 |
| vapor density【蒸汽密度】 | 4.6 (vs air) |
| vapor pressure【蒸汽压】 | <0.1 mmHg ( 20 ℃) |
| Assay【测定】 | 99-100.5% (alkalimetric) |
| optical activity【旋光性】 | [α]/D −0.10 to +0.10° |
| autoignition temp.【自燃温度】 | 644 °F |
| technique(s) | IR spectroscopy: suitable |
| impurities【杂质】 | ≤0.05% maleic acid ≤0.1% water insoluble matter ≤1% fumaric acid |
| ign. residue【灼烧残渣】 | ≤0.1% (as SO4) |
| mp | 129-133 ℃ 131-133 ℃ (lit.) |
| solubility【溶解性】 | acetone: soluble 17.75 g/ 100 gm at 20 ℃ diethyl ether: soluble 0.84 g/100 gm at 20 ℃ dioxane: soluble 22.70 g/100 gm at 20 ℃ ethanol: soluble 45.53 g/100 gm at 20 ℃ methanol: soluble 82.70 g/100 g at 20 ℃ water: soluble 55.8 g/100 gm at 20 ℃ benzene: insoluble |
| cation traces【痕量阳离子】 | As: ≤3 mg/kg Hg: ≤1 mg/kg Pb: ≤2 mg/kg |
| suitability【适用性】 | complies for identity (IR) |
| application(s) | pharmaceutical (small molecule) |
| SMILES string | OC(CC(O)=O)C(O)=O |
| InChI | 1S/C4H6O5/c5-2(4(8)9)1-3(6)7/h2,5H,1H2,(H,6,7)(H,8,9) |
| InChI key | BJEPYKJPYRNKOW-UHFFFAOYSA-N |
安全信息
| Pictograms【象形图】 | GHS07 |
| Signal word【警示用语：】 | Warning |
| Hazard Statements | H319 |
| Precautionary Statements | P264 - P280 - P305 + P351 + P338 - P337 + P313 |
| Hazard Classifications【危险分类】 | Eye Irrit. 2 |
| Storage Class Code【储存分类代码】 | 11 - Combustible Solids |
| WGK | WGK 3 |
| Flash Point(F)【闪点(F)】 | 397.4 °F |
| Flash Point(C)【闪点(C)】 | 203 ℃ |
| Personal Protective Equipment【个人防护装备】 | dust mask type N95 (US), Eyeshields, Gloves |
