471-35-2 Usage
General Description
Tetramethyldiarsine, also known as (CH3)2As-As(CH3)2, is a toxic organoarsenic compound that is used as a precursor in the production of semiconductors. It is a colorless, volatile liquid with a pungent odor, and it is highly flammable. Tetramethyldiarsine is extremely toxic and exposure to this chemical can cause a range of health effects, including irritation of the skin, eyes, and respiratory system, as well as damage to the liver and kidneys. It is also considered a potential carcinogen. Due to its toxic nature, tetramethyldiarsine is strictly regulated and should be handled with extreme caution.
Check Digit Verification of cas no
The CAS Registry Mumber 471-35-2 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,7 and 1 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 471-35:
(5*4)+(4*7)+(3*1)+(2*3)+(1*5)=62
62 % 10 = 2
So 471-35-2 is a valid CAS Registry Number.
471-35-2Relevant articles and documents
Krannich,Sisler
, p. 1032,1033 (1969)
NMR studies of the reactions of Me2AsH with Me2AsNMe2 and Me2AsNMe2·BH3: Synthetic routes to Me2AsAsMe2
Gupta, Virendra K.,Krannich, Larry K.,Watkins, Charles L.
, p. 2553 - 2556 (2008/10/08)
Me2AsH reacts irreversibly with Me2AsNMe2 and Me2AsNMe2·BH3 to give good yields of Me2AsAsMe2. The nitrogen-containing product is Me2NH or Me2NH·BH3, respectively. These reactions have been followed by using multinuclear (1H, 11B, and 13C) NMR spectroscopy to elucidate the respective reaction mechanisms. Although the Me2AsH/Me2AsNMe2 reaction proceeds faster initially, the overall rate of reaction is slower than that for the Me2AsH/Me2AsNMe2·BH3 reaction. This is a consequence of the presence of inhibiting exchange reactions in the Me2AsH/Me2AsNMe2 system that are absent when Me2AsNMe2 and Me2NH are bound to BH3 in the Me2AsH/Me2AsNMe2·BH3 reaction. A detailed NMR study of the exchange reactions involving the >AsNNH, >AsAsAsH, and >AsNAsAs2AsAsMe2.
