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Merck
CN

87849

四甲基脲

≥99.5% (GC)

别名:

1,1,3,3-四甲基脲, TMU

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线性分子式:
(CH3)2NCON(CH3)2
化学文摘社编号:
632-22-4
分子量:
116.16
EC Number:
211-173-9
UNSPSC Code:
12352100
PubChem Substance ID:
329769611
Beilstein/REAXYS Number:
773898
MDL number:
MFCD00008319

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assay

≥99.5% (GC)

impurities

≤0.3% water

ign. residue

≤0.05%

refractive index

n20/D 1.451 (lit.), n20/D 1.452

pH

5-8 (25 °C, 1 M in H2O)

bp

177 °C (lit.), 62-63 °C/12 mmHg (lit.)

mp

−1 °C (lit.)

solubility

H2O: miscible 1 M at 20 °C

density

0.968 g/mL at 20 °C (lit.)

anion traces

chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤50 mg/kg

cation traces

Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤50 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Na: ≤50 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤20 mg/kg

λ

1 M in H2O

UV absorption

λ: 260 nm Amax: 1.00, λ: 280 nm Amax: 0.09

SMILES string

CN(C)C(=O)N(C)C

InChI

1S/C5H12N2O/c1-6(2)5(8)7(3)4/h1-4H3

InChI key

AVQQQNCBBIEMEU-UHFFFAOYSA-N

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Other Notes

液态蛋白变性剂。用于血红蛋白的解离；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

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Repr. 1B - Skin Irrit. 2

存储类别

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk

WGK 3

flash_point_f

167.0 °F - closed cup

flash_point_c

75 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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