33428
4,4′-MDI
analytical standard
别名:
4,4′-亚甲基双(异氰酸苯酯), 4,4′-二苯甲烷二异氰酸酯, 4,4′-亚甲基二苯基二异氰酸酯, 4,4′-MDI, 二苯基甲烷-4,4′-二异氰酸酯
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关于此项目
线性分子式:
CH2(C6H4NCO)2
化学文摘社编号:
分子量:
250.25
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
EC Number:
202-966-0
Beilstein/REAXYS Number:
797662
MDL number:
SMILES string
O=C=Nc1ccc(Cc2ccc(cc2)N=C=O)cc1
InChI key
UPMLOUAZCHDJJD-UHFFFAOYSA-N
InChI
1S/C15H10N2O2/c18-10-16-14-5-1-12(2-6-14)9-13-3-7-15(8-4-13)17-11-19/h1-8H,9H2
grade
analytical standard
shelf life
limited shelf life, expiry date on the label
technique(s)
HPLC: suitable, gas chromatography (GC): suitable
bp
200 °C/5 mmHg (lit.)
mp
42-45 °C (lit.)
density
1.18 g/mL at 25 °C (lit.)
application(s)
environmental
format
neat
storage temp.
−20°C
Quality Level
General description
4,4'-MDI 可广泛用于制造聚氨酯弹性体和聚氨酯涂层。
该物质被列入欧盟法规10/2011中关于拟与食品接触的塑料的积极清单。
Application
4,4′-MDI可作为分析标准品，通过各种色谱技术用于测定废水和空气样品 和人类生物样本中的分析物。
有关合适仪器技术的更多信息，请参考产品分析证书。如需进一步支持，请联系技术服务。
signalword
Danger
Hazard Classifications
Acute Tox. 4 Inhalation - Carc. 2 - Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT RE 2 Inhalation - STOT SE 3
target_organs
Respiratory system
存储类别
11 - Combustible Solids
wgk
WGK 1
flash_point_f
411.8 °F - closed cup
flash_point_c
211 °C - closed cup
ppe
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
法规信息
危险化学品
此项目有
Hatada
Macromolecular Design of Polymeric Materials, 40 (1997)
Yan Zhu et al.
Journal of chromatography. A, 956(1-2), 215-220 (2002-07-11)
A method has been developed for the simultaneous determination of a range of aromatic amines using cation-exchange chromatography performed on a standard ion chromatography column using d.c. amperometric detection. The analytes separated were 2,4- and 2,6-toluenediamine (2,4- and 2,6-TDA), aniline
A highly sensitive high-performance liquid chromatographic procedure for the determination of isocyanates in air
Schmidtke F and Seifert B
Fresenius Journal of Analytical Chemistry, 336(8), 647-654 (1990)
Liquid chromatography and mass spectrometry determination of aromatic amines in hydrolysed urine from workers exposed to thermal degradation products of polyurethane
Skarping G, et al.
Chromatographia, 39(9-10), 619-623 (1994)
Sensitive determination of airborne diisocyanates by HPLC: 4, 4?-Diphenylmethane-diisocyanate (MDI)
Schulz M and Salthammer T
Fresenius Journal of Analytical Chemistry, 362(3), 289-293 (1998)
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