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131303-43-0

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131303-43-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 131303-43-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,3,0 and 3 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 131303-43:
(8*1)+(7*3)+(6*1)+(5*3)+(4*0)+(3*3)+(2*4)+(1*3)=70
70 % 10 = 0
So 131303-43-0 is a valid CAS Registry Number.

131303-43-0Upstream product

131303-43-0Relevant articles and documents

Synthesis and characterization of O,O-dimethyl-N-(2,2,2-trichloro-1- arylaminoethyl) phosphoramidothioates

Wang, Baolei,Liu, Xinghai,Li, Zhengming

scheme or table, p. 2281 - 2287 (2010/04/28)

Several novel trichloromethyl-containing O,O-dimethyl phosphoramidothioate derivatives have been synthesized by the reaction of O,O-dimethyl phosphoramidothioate with chloral imines. The latter were prepared in good yields by refluxing the dichloroethane

Some reactions of ammonia and primary amines with propanal, 2-chloroethanal, 2,2-dichloroethanal and 2,2,2-trichloroethanal in acetonitrile

Crampton, Michael R.,Lord, Simon D.,Millar, Ross

, p. 909 - 914 (2007/10/03)

The reaction of ammonia with propanal in acetonitrile produces the hexahydrotriazine, 1, in good yield. The corresponding reaction of chloroethanal yields the cyclic trimer 16 but only in poor yield. Increasing chloro-substitution in the aldehyde stabilises the initially formed carbinolamines and disfavours trimerisation. Imines formed by reaction of primary amines with the aldehydes are relatively stable. Those formed from aliphatic amines may undergo slow dimerisation by C-C bond formation and this may be accompanied by loss of amine to yield products containing a conjugated double-bond system. Kinetic and equilibrium data are reported for both the forward and reverse reactions involving interconversion of propanal and ammonia with 1 in acetonitrile-water mixtures. The results indicate that dehydration of the carbinolamine is rate determining.

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