NIST2141

Urea

NIST^® SRM^® 2141

• Szinonimák: Carbamide, Carbonyldiamide
• Lineáris képlet: NH₂CONH₂
• CAS-szám: 57-13-6
• Molekulatömeg: 60.06
• Beilstein: 635724
• MDL-szám: MFCD00008022
• UNSPSC kód: 41116107
• PubChem Substance ID: 329818729
• NACRES: NA.24

Tulajdonságok

• grade: certified reference material
• Minőségi szint: 100
• Forma: crystals
• kiszerelés: pkg of 2 g
• gyártó/kereskedő neve: NIST^®
• mp: 132-135 °C (lit.)
• sűrűség: 1.335 g/mL at 25 °C (lit.)
• alkalmazás(ok): clinical testing
• SMILES string: NC(N)=O
• InChI: 1S/CH4N2O/c2-1(3)4/h(H4,2,3,4)
• Nemzetközi kémiai azonosító kulcs: XSQUKJJJFZCRTK-UHFFFAOYSA-N

Leírás

Általános leírás

SRM 2141_cert

SRM 2141_SDS

Alkalmazás

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.

Tulajdonságok és előnyök

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

Egyéb megjegyzések

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.

Jogi információk

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

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

Biztonsági adatok

• Tárolási osztály kódja: 11 - Combustible Solids
• WGK: WGK 1
• Lobbanási pont (F): Not applicable
• Lobbanási pont (C): Not applicable