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17889-64-4

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17889-64-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 17889-64-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,8,8 and 9 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 17889-64:
(7*1)+(6*7)+(5*8)+(4*8)+(3*9)+(2*6)+(1*4)=164
164 % 10 = 4
So 17889-64-4 is a valid CAS Registry Number.

17889-64-4Relevant articles and documents

Synthesis of 2-acyltetrahydroisoquinolines and 2-acyl-1,2,3,4- tetrahydro-1,2-benzothiazine-1,1-diones by electrophilic substitution reactions of N-acyl-2-phenylethylamines

Lukanov, Ludmil K.,Venkov, Atanas P.

, p. 2137 - 2147 (2007/10/03)

l-Substituted- 5, 1,5-substituted 7,8-dioxygenated-2- acyltetrahydroisoquinolines 10 and 2-acyl-1,2,3,4-tetrahydro-1,2- benzothiazine-l,l-diones 12 has been obtained by the reaction of N-acyl-2- phenylethylamines with aldehydes or chlorosulfonic acid as a

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