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Wikipedia
https://en.wikipedia.org/wiki/4,4'-Methylenedianiline
4,4'-Methylenedianiline - Wikipedia
4,4′-Methylenedianiline (MDA) is an organic compound with the formula CH2(C6H4NH2)2. It is a colorless solid, although commercial samples can appear yellow or brown. It is produced on an industrial scale, mainly as a precursor to polyurethanes.
CAS号101-77-9
PubChem7577
ChemSpider7296
UN编号2651
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Methylenedianiline (MDA) Sampling NIOSH 5029
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Synthesis and applications
In the industrial production, MDA is produced by reaction of formaldehyde and aniline in the presence of hydrochloric acid.
MDA is a common monomer in the synthesis of polymer materials. These include polyamid… 展开
Safety
MDA is considered a potential occupational carcinogen by the US National Institute for Occupational Safety and Health. The Occupational Safety and Health Administration has set a permissible exposure limit at … 展开
Related compounds
• 4,4'-Thiodianiline
• 4,4'-Oxydianiline
• Dapsone 展开
External links
• "International Labour Organization". icsc1111.
• "NIOSH Pocket Guide to Chemical Hazards". Centers for Disease Control and Prevention.
• "European Union Risk Assessment Report" (PDF). Archived from … 展开
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Wikipedia
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4,4'-二氨基二苯甲烷 - 百度百科
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化学性质
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化学物质
4,4'-二氨基二苯甲烷又称MDA，淡黄色结晶，遇光变成黑色。难溶于水，易溶于乙醇、乙醚、苯。用于胶黏剂、层压品及涂料等。也用作氢丁橡胶及胶乳的硫化促进剂，在天然橡胶、丁苯橡胶中用作噻唑促进剂和活性剂。还用作制造二异氰酸盐、聚酰胺等。
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PubChem
https://pubchem.ncbi.nlm.nih.gov › compound
4,4'-Methylenedianiline | C13H14N2 | CID 7577 - PubChem
4,4'-Methylenedianiline (MDA) is primarily used to produce 4,4'-methylenedianline diisocyanate and other polymeric isocyanates. Acute (short-term) oral and dermal exposure to MDA causes …
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4,4'-Methylenedianiline
Methylene Dianiline
Methylenedianiline Sources
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4,4'-methylenedianiline (methylenedianiline, MDA) molecule. Suspected carcinogen, on the list of ...
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4,4'-methylenedianiline (methylenedianiline, MDA) molecule. Suspected carcinogen, on the list of ...
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4,4′-Methylenedianiline-15N2, 13C | Stable Isotope | MedChemExpress
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4,4'-methylenedianiline (methylenedianiline, MDA) molecule. 3D rendering. Suspected carcinogen ...
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Methylenedianiline molecule, illustration - Stock Image - F027/8009 - Science Photo Library
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4,4'-二氨基二苯甲烷 - 维基百科，自由的百科全书
4,4'-二氨基二苯甲烷（英語： 4,4′-Methylenedianiline，缩写 MDA）是一种二苯甲烷衍生物，化学式为 CH 2 (C 6 H 4 NH 2) 2，常温常压下为无色固体，工业上作为生产聚氨酯的原料 [3]。
Centers for Disease Control and Prevention
https://wwwn.cdc.gov › TSP › substances › ToxSubstance.aspx
4,4'-Methylenedianiline | Toxic Substances | Toxic Substance Portal …
Learn about the chemical, health, and environmental effects of 4,4'-methylenedianiline, a colorless to pale yellow solid used for making polyurethane foams and other products. Find …
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4,4'-Methylenedianiline
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Centers for Disease Control and Prevention
https://wwwn.cdc.gov › TSP › PHS › PHS.aspx
4,4'-Methylenedianiline | Public Health Statement | ATSDR
This profile discusses this important form of methylenedianiline. Other forms of methylenedianiline are only used as laboratory chemicals and have no commercial uses at this time. 4,4' …
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4,4'-Methylenedianiline
Methylene Dianiline
Methylenedianiline Sources
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Does -methylenedianiline affect human health?
Most of the information on human health effects of 4,4´-methylenedianiline emanates from a case of ingestion of contaminated food and several reports of exposure in the workplace. The inhalation and dermal routes represent the most likely routes of exposure to 4,4´-methylenedianiline in occupational settings.
HEALTH EFFECTS - Toxicological Profile for Methylenedianiline - NCBI
ncbi.nlm.nih.gov
What is methylenedianiline used for?
This profile discusses this important form of methylenedianiline. Other forms of methylenedianiline are only used as laboratory chemicals and have no commercial uses at this time. 4,4’-Methylenedianiline is also commonly known as diaminodiphenylmethane or MDA.
PUBLIC HEALTH STATEMENT - Toxicological Profile for Methylenedianili…
ncbi.nlm.nih.gov
What is 4 4 methylenedianiline?
View More... 4,4'-Methylenedianiline is an industrial chemical that is not known to occur naturally. It is also commonly known as diaminodiphenylmethane or MDA.
4,4'-Methylenedianiline | C13H14N2 | CID 7577 - PubChem
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How toxic is 44 -methylenedianiline in humans?
Little is known about toxicokinetics of 4,4´-methylenedianiline in humans. 4,4´-Methylenedianiline has been detected in the urine of workers exposed to the chemical. Animals can absorb 4,4´-methylenedianiline through inhalation, ingestion, or skin contact with the chemical.
HEALTH EFFECTS - Toxicological Profile for Methylenedianiline - NCBI
ncbi.nlm.nih.gov
What is the standard state of Methylenedianiline (MDA)?
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). ?) 4,4′-Methylenedianiline (MDA) is an organic compound with the formula CH2(C6H4NH2)2. It is a colorless solid, although commercial samples can appear yellow or brown.
4,4'-Methylenedianiline - Wikipedia
en.wikipedia.org
How many methylenedianilines are there?
Methylenedianilines can exist in five isomeric forms: 2,2’-methylenedianiline; 2,4’-methylenedianiline; 3,3’-methylenedianiline; 3,4’-methylenedianiline; and 4,4´-methylenedianiline.
HEALTH EFFECTS - Toxicological Profile for Methylenedianiline - NCBI
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National Center for Biotechnology Information
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HEALTH EFFECTS - Toxicological Profile for …
Respiratory Effects. Guinea pigs exposed nose-only to 440 mg/m 3 of an aerosol of 4,4´-methylenedianiline in propylene glycol 4 hours per day, 5 days per week for 2 weeks experienced no respiratory distress during exposures (Leong et …
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Published:1998/08
National Center for Biotechnology Information
National Center for Biotechnology Information
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PUBLIC HEALTH STATEMENT - Toxicological Profile for …
1.1. WHAT IS METHYLENEDIANILINE? Methylenedianiline exists in several very similar forms. Of these various forms,-4,4’-methylenedianiline is the form used by industries. This profile …
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Published:1998/08
Public Health Statement
ChemicalBook
https://www.chemicalbook.com
4,4'-Methylenedianiline | 101-77-9 - ChemicalBook
2025年1月27日 · 4,4'-Methylenedianiline (CAS 101-77-9) information, including chemical properties, structure, melting point, boiling point, density, formula, molecular weight, uses, prices, suppliers, SDS and more, available at …
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4,4'-Methylenedianiline
242 °C2 mm Hg (lit.)
89-91 °C (lit.)
0Pa at 25℃
ChemBK
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亚甲基二苯胺_化工百科 - ChemBK
中文名:4,4'-二氨基二苯基甲烷,英文名:4,4'-Methylenedianiline,CAS:101-77-9,化学式:C13H16N2,分子量:200.278,熔点:88-92℃,沸点:398°C at 760 mmHg,闪点:226.3°C,水溶性:Slightly soluble. …
标记:
4,4'-Methylenedianiline
中文名:4,4'-二氨基二苯基甲烷

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