| Company Name: | MP Biomedicals Gold |
| Tel: | 400-1500-680 021-62402299 |
| Email: | nancy.cai@mpbio.com |
| Products Intro: |
Product Name:UREA, ULTRA PURE
CAS:57-13-6
Purity:>=99% Package:5KG,25kg Remarks:04821530 |
| Company Name: | Beijing NuoqiYa Biotechnology Co., Ltd. Gold |
| Tel: | 4000-819-385 010-62329685 13718666987 |
| Email: | good@nuoqiya.com |
| Products Intro: |
Product Name:Urea
CAS:57-13-6
Purity:99.0%(N) Package:5g 25g |
| Company Name: | Shanghai Macklin Biochemical Co.,Ltd. Gold |
| Tel: | 021-51821861 |
| Email: | sales@macklin.cn |
| Products Intro: |
Product Name:Urea Standard Solution (calculated as N)
CAS:57-13-6
Purity:Ph. Eur.,BP,USP,99.0-100.5% Package:20ml |
| Company Name: | J & K SCIENTIFIC LTD. |
| Tel: | 400-666-7788 +86-10-82848833 |
| Email: | jkinfo@jkchemical.com;market3@jkchemical.com |
| Products Intro: |
Product Name:Urea
CAS:57-13-6
Purity:99% Package:1KG,5KG |
| Company Name: | Meryer (Shanghai) Chemical Technology Co., Ltd. |
| Tel: | +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-59487313(Beijing) |
| Email: | sh@meryer.com |
| Products Intro: |
Product Name:Urea
CAS:57-13-6
Purity:99% Package:500g Remarks:AAA125148 |
|
| mp | 132-135 °C(lit.)
| | density | 1.335 g/mL at 25 °C(lit.)
| | refractive index | n20/D 1.40
| | storage temp. | 2-8°C
| | solubility | H2O: 8 M at 20 °C
| | form | powder
| | color | white
| | Water Solubility | 1080 g/L (20 ºC) | | Merck | 14,9867 | | BRN | 635724 | | Stability: | Substances to be avoided include strong oxidizing agents. Protect from moisture. | | CAS DataBase Reference | 57-13-6(CAS DataBase Reference) | | NIST Chemistry Reference | Urea(57-13-6) | | EPA Substance Registry System | Urea(57-13-6) |
| Chemical Properties | White crystalline powder | | Usage | 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. | | Usage | anticholelithogenic; LD50(rat) 890 mg/kg ip | | Usage | Urea is a physiological regulator of nitrogen excretion in mammals; synthesized in the liver as an end-product of protein catabolism and excreted in urine. Also occurs normally in skin. Emollient; diu
retic. | | General Description | Solid odorless white crystals or pellets. Density 1.335 g /cc. Noncombustible. | | Air & Water Reactions | Water soluble. | | Reactivity Profile | Urea is a weak base. Reacts with hypochlorites to form nitrogen trichloride which explodes spontaneously in air [J. Am. Chem. Soc. 63:3530-32]. Same is true for phosphorus pentachloride. Urea reacts with azo and diazo compounds to generate toxic gases. Reacts with strong reducing agents to form flammable gases (hydrogen). The heating of improper stoichiometric amounts of Urea and sodium nitrite lead to an explosion. Heated mixtures of oxalic acid and Urea yielded rapid evolution of gases, carbon dioxide, carbon monoxide and ammonia (if hot, can be explosive). Titanium tetrachloride and Urea slowly formed a complex during 6 weeks at 80°C., decomposed violently at 90°C., [Chem. Abs., 1966, 64, 9219b]. Urea ignites spontaneously on stirring with nitrosyl perchlorate, (due to the formation of the diazonium perchlorate). Oxalic acid and Urea react at high temperatures to form toxic and flammable ammonia and carbon monoxide gasses, and inert CO2 gas [Von Bentzinger, R. et al., Praxis Naturwiss. Chem., 1987, 36(8), 41-42]. | | Health Hazard | May irritate eyes. | | Fire Hazard | Behavior in Fire: Melts and decomposes, generating ammonia. |
| | Urea Preparation Products And Raw materials |
| Preparation Products | 2-HYDROXY-4-PHENYLPYRIMIDINE-5-CARBOXYLIC ACID-->ETHYL 2-HYDROXYPYRIMIDINE-5-CARBOXYLATE-->rubber latex 104T/C-->Cymoxanil-->4,5-dihydroxy-1,3-bis(hydroxymethyl)imidazolidin-2-one-->Tableware cleaner-->Carbachol-->Biuret-->Reactive Black KN-BN-->DICHLOROISOCYANURIC ACID-->5-CARBETHOXYURACIL-->Pigment Yellow 65-->2,6-Dichloro-4,8-dipiperidinopyrimidino[5,4-d]pyrimidine-->biodegrddable finishing agent for fabric-->2,4,6,8-Tetrahydroxy-Pyrimido-(5,4D)Pyrimidine-->DIRECT FAST BLACK G-->Amino moulding plastic-->Water flush fertilizer-->Furacilin-->ALLYLUREA-->flame retardane ZR-01-->1-PHENYLSEMICARBAZIDE-->Thieno[3,2-d]pyrimidine, 2,4-dichloro--->1-(1,3-DIHYDRO-1-OXOISOBENZOFURAN-3-YL)UREA-->2,4-DICHLOROTHIENO[3,2-D]PYRIMIDINE-->6-Aminouracil -->ureaformaldelyde resin UF-->synthetic carbamider ring tanning agent No.1-->5-(sec-pentyl)barbituric acid-->synthetic tanning agent PNC-->Tanning agent for white leather-->1-Methyl-1-nitrosourea-->N,N''-(isobutylidene)diurea-->2,4-DIHYDROXYTHIENO[3,2-D]PYRIMIDINE-->1-(2-Aminoethyl)imidazolidin-2-one-->BIUREA-->5,6-DIHYDROURACIL-->DIHYDROTHYMINE-->3-Hydroxy-1-phenyl-1,2,4-triazole-->Urea hydrogen peroxide | | Raw materials | Acetic acid glacial-->Ammonia-->CARBON DIOXIDE-->Glycine-->2,2'-Iminodiethanol-->PETROLEUM ETHER-->METALLURGICAL COKE--> HEAVY CUT RESIDUE OIL-->Vanadium pentoxide -->Liquefied petroleum ges-->AMMONIUM CARBAMATE |
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