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143538-93-6

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143538-93-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 143538-93-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,5,3 and 8 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 143538-93:
(8*1)+(7*4)+(6*3)+(5*5)+(4*3)+(3*8)+(2*9)+(1*3)=136
136 % 10 = 6
So 143538-93-6 is a valid CAS Registry Number.

143538-93-6Relevant articles and documents

A Convenient Synthesis of 1,2,5-Trisubstituted 4,5-Dihydroimidazoles and 1,3-Diazaspiroalk-2-enes from N-Alkylideneanilines

Naim, S. Shawkat,Sharma, Satyavan

, p. 664 - 666 (2007/10/02)

A convenient synthesis of 5-aryl-4,5-dihydro-2-methoxycarbonylamino-1-phenylimidazoles 5a-d and 2-methoxycarbonylamino-1-phenyl-1,3-diazaspiroalk-2-enes 5e,f has been reported from N-alkylideneanilines 1a-f via cyclization of the corresponding 1,2

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