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643752-18-5

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643752-18-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 643752-18-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,3,7,5 and 2 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 643752-18:
(8*6)+(7*4)+(6*3)+(5*7)+(4*5)+(3*2)+(2*1)+(1*8)=165
165 % 10 = 5
So 643752-18-5 is a valid CAS Registry Number.

643752-18-5Downstream Products

643752-18-5Relevant articles and documents

Regioselective Reduction of 2-(Arylideneamino)isoindole-1,3-diones - Synthesis of Alkaloid Analogues by N-Acylhydrazonium Ion Aromatic π-Cyclization

Fogain-Ninkam, Alain,Daich, Adam,Decroix, Bernard,Netchitailo, Pierre

, p. 4273 - 4278 (2007/10/03)

Hydroxylactams 6a-c and 7a-c were synthesized by successive regioselective reductions of arylideneaminophthalimides 3a-c, which were easily available from aminophthalimide 1 and benzaldehyde (2a) or thiophenecarboxaldehydes 2b and 2c. N-Acylhydrazonium io

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