NIST2141

尿素

NIST^® SRM^® 2141

• 别名: 碳酰二胺, 碳酰胺
• 线性分子式: NH₂CONH₂
• CAS号: 57-13-6
• 分子量: 60.06
• Beilstein: 635724
• MDL编号: MFCD00008022
• UNSPSC代码: 41116107
• PubChem化学物质编号: 329818729
• NACRES: NA.24

属性

• 等级: certified reference material
• 质量水平: 100
• 表单: crystals
• 包装: pkg of 2 g
• 制造商/商品名称: NIST^®
• mp: 132-135 °C (lit.)
• 密度: 1.335 g/mL at 25 °C (lit.)
• 应用: clinical testing
• SMILES字符串: NC(N)=O
• InChI: 1S/CH4N2O/c2-1(3)4/h(H4,2,3,4)
• InChI key: XSQUKJJJFZCRTK-UHFFFAOYSA-N

说明

一般描述

SRM 2141_cert

SRM 2141_SDS

应用

用于蛋白质变性以及作为不溶性或变性蛋白的温和增溶剂。可用于从已由 6M 盐酸胍变性的样品(如包涵体)复性蛋白质。可与盐酸胍和二硫苏糖醇 (DTT) 一起用于复性变性蛋白以恢复其天然或活性形式。

Urea Standard reference material (SRM) is certified for calibrating and standardizing microchemical procedures aimed at determining nitrogen in organic matter. Additionally, it serves as a tool for standardizing techniques for nitrogen determination, when carbon and hydrogen are simultaneously analyzed.

特点和优势

Available with a certificate documentingnitrogen value determined through a modification of the AOAC micro-Kjeldahlmethod.

其他说明

Example analytes are listed below as a reference. Please download a current certificate at nist.gov/SRM for current analytes and certified values.
Nitrogen (N)

See certificate for values and more details at nist.gov/SRM.

法律信息

NIST is a registered trademark of National Institute of Standards and Technology

SRM is a registered trademark of National Institute of Standards and Technology

安全信息

• 储存分类代码: 11 - Combustible Solids
• WGK: WGK 1
• 闪点(°F): Not applicable
• 闪点(°C): Not applicable