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硬脂酸
Stearic Acid
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 |
| 3244939 | 1 G | 1490 |
产品别名
57-11-4
硬脂酸
Stearic Acid
Octadecanoic acid
Stearophanic acid
NSC 25956
1-Heptadecanecarboxylic acid
C18:0
NSC 261168
Cetylacetic acid
1-十八碳烷酸
十八烷酸
结构式
基本信息
| Linear Formula【线性分子式】 | CH3(CH2)16COOH |
| Molecular weight | 284.48 |
| Beilstein | 608585 |
| EC number【EC 号】 | 200-313-4 |
| MDL number | MFCD00002752 |
| PubChem Substance ID【PubChem化学物质编号】 | 329823135 |
| General description【一般描述】 | Stearic acid is a saturated fatty acid, which is a long aliphatic chain containing a carboxyl group at one end and a methyl group at the other. Pharmaceutically, it is used as a lubricant in tablet and capsule formulations and as an emulsifying and solubilizing agent in topical formulations. Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards. |
| Application【应用】 | Stearic acid may be used as a pharmaceutical reference standard for the determination of the analyte in raw material, food and pharmaceutical formulations by gas chromatography. These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements. |
| Analysis Note【分析说明】 | These secondary standards offer multi-traceability to the USP, EP (PhEur) and BP primary standards, where they are available. |
| Other Notes【其他说明】 | This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis. |
| Footnote【附注】 | To see an example of a Certificate of Analysis for this material enter LRAA7125 in the slot below. This is an example certificate only and may not be the lot that you receive. |
产品性质
| Quality Level【质量水平】 | 300 |
| grade【等级】 | certified reference material pharmaceutical secondary standard |
| vapor pressure【蒸汽压】 | 1 mmHg ( 173.7 ℃) |
| CofA | current certificate can be downloaded |
| technique(s) | HPLC: suitable gas chromatography (GC): suitable |
| bp | 361 ℃ (lit.) |
| mp | 67-72 ℃ (lit.) |
| application(s) | cleaning products cosmetics food and beverages personal care pharmaceutical (small molecule) |
| format【格式】 | neat |
| pharmacopeia traceability【药典可追溯性】 | traceable to PhEur S1340000 traceable to USP 1621008 |
| storage temp.【储存温度】 | 2-30℃ |
| SMILES string | CCCCCCCCCCCCCCCCCC(O)=O |
| InChI | 1S/C18H36O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h2-17H2,1H3,(H,19,20) |
| InChI key | QIQXTHQIDYTFRH-UHFFFAOYSA-N |
安全信息
| Storage Class Code【储存分类代码】 | 11 - Combustible Solids |
| WGK | nwg |
