NIST2141

Urea

NIST^® SRM^® 2141

• 동의어(들): Carbamide, Carbonyldiamide
• Linear Formula: NH₂CONH₂
• CAS Number: 57-13-6
• Molecular Weight: 60.06
• Beilstein: 635724
• MDL number: MFCD00008022
• UNSPSC 코드: 41116107
• PubChem Substance ID: 329818729
• NACRES: NA.24

속성

• Grade: certified reference material
• Quality Level: 100
• 양식: crystals
• 포장: pkg of 2 g
• 제조업체/상표: NIST^®
• mp: 132-135 °C (lit.)
• density: 1.335 g/mL at 25 °C (lit.)
• 응용 분야: clinical testing
• SMILES string: NC(N)=O
• InChI: 1S/CH4N2O/c2-1(3)4/h(H4,2,3,4)
• InChI key: XSQUKJJJFZCRTK-UHFFFAOYSA-N

설명

일반 설명

SRM 2141_cert

SRM 2141_SDS

애플리케이션

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.

Used for the denaturation of proteins and as a mild solubilization agent for insoluble or denatured proteins. Useful for renaturing proteins from samples already denatured with 6 M guanidine chloride such as inclusion bodies. May be used with guanidine hydrochloride and dithiothreitrol (DTT) in the refolding of denatured proteins into their native or active form.

특징 및 장점

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

기타 정보

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.

법적 정보

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

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

안전성 정보

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable