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39562-20-4

39562-20-4

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39562-20-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 39562-20-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,5,6 and 2 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 39562-20:
(7*3)+(6*9)+(5*5)+(4*6)+(3*2)+(2*2)+(1*0)=134
134 % 10 = 4
So 39562-20-4 is a valid CAS Registry Number.

39562-20-4Relevant articles and documents

Synthesis of [allyl-2,3-3H]-MN-9201

Wu, Dezhu,Huang, Wenlin,Wang, Wen,Mei, Qibing

, p. 785 - 789 (2007/10/03)

Key step of the synthesis of calcium antagonist MN-9201 was the cyclizing addition of the ally-13-amino-crotonate onto methyl 2-[(3- nitrophenyl) methylene ]-3-oxobutanoate. It was then used to synthesize [Allyl-2,3-3H]-MN-9201 by the catalytic addition of tritium gas. Its radiochemical purity and specific activity were 98% and 2.1TBq/mmol, respectively.

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