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21250-13-5

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21250-13-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21250-13-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,2,5 and 0 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 21250-13:
(7*2)+(6*1)+(5*2)+(4*5)+(3*0)+(2*1)+(1*3)=55
55 % 10 = 5
So 21250-13-5 is a valid CAS Registry Number.

21250-13-5Relevant articles and documents

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

Wang, Baolei,Liu, Xinghai,Li, Zhengming

experimental part, 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

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