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
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)
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
Hatada
Macromolecular Design of Polymeric Materials, 40 (1997)
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)
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)
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