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Tetramethylurea

Catalog No. 87849 Name Sigma Aldrich
CAS Number 632-22-4 Website http://www.sigmaaldrich.com
M. F. C5H12N2O Telephone 1-800-521-8956
M. W. 116.16158 Fax
Purity ≥99.5% (GC) Email
Storage Chembase ID: 104693

SYNONYMS

Title
四甲基脲
IUPAC name
1,1,3,3-tetramethylurea
IUPAC Traditional name
temur
Synonyms
1,1,3,3-四甲基脲
TMU
1,1,3,3-Tetramethylurea

DATABASE IDS

MDL Number MFCD00008319
CAS Number 632-22-4
EC Number 211-173-9
Beilstein Number 773898

PROPERTIES

Antion Traces chloride (Cl-): ≤50 mg/kg
Antion Traces sulfate (SO42-): ≤50 mg/kg
Cation Traces Ca: ≤10 mg/kg
Cation Traces Cd: ≤5 mg/kg
Cation Traces Co: ≤5 mg/kg
Cation Traces Cr: ≤5 mg/kg
Cation Traces Cu: ≤5 mg/kg
Cation Traces Fe: ≤5 mg/kg
Cation Traces K: ≤50 mg/kg
Cation Traces Mg: ≤5 mg/kg
Cation Traces Mn: ≤5 mg/kg
Cation Traces Na: ≤50 mg/kg
Cation Traces Ni: ≤5 mg/kg
Cation Traces Pb: ≤5 mg/kg
Cation Traces Zn: ≤20 mg/kg
Ignition Residue ≤0.05%
Impurities ≤0.3% water
λ 1 M in H2O
Linear Formula (CH3)2NCON(CH3)2
Purity ≥99.5% (GC)
Absorption Wavelength λ: 260 nm Amax: 1.00
Absorption Wavelength λ: 280 nm Amax: 0.09
Boiling Point 177 °C(lit.)
Boiling Point 62-63 °C/12 mmHg(lit.)
Density 0.968 g/mL at 20 °C(lit.)
Flash Point 75 °C
Flash Point 167 °F
Melting Point -1 °C(lit.)
pH 5-8 (25 °C, 1 M in H2O)
Refractive Index n20/D 1.451(lit.)
Refractive Index n20/D 1.452
Solubility H2O: miscible1 M at 20 °C
GHS Pictograms GHS07
GHS Pictograms GHS08
GHS Signal Word Danger
GHS Hazard statements H302-H360D
European Hazard Symbols Toxic Toxic (T)
MSDS Link Download
Personal Protective Equipment Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
GHS Precautionary statements P201-P308 + P313
Risk Statements 61-22
RTECS YU2625000
Safety Statements 53-45
German water hazard class 3

DETAILS

Description (English)
Other Notes
Liquid denaturing agent for proteins. Used for the dissociation of hemoglobin1; TMU delipidates and quantitatively liberates the apoproteins of human serum high-density lipoprotein in soluble form2
Description (简体中文)
Other Notes
液态蛋白变性剂。用于血红蛋白的解离1;TMU 可将可溶形式的人血清高密度脂蛋白的载脂蛋白去脂化并定量释放2

REFERENCES