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128083-16-9

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128083-16-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128083-16-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,0,8 and 3 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 128083-16:
(8*1)+(7*2)+(6*8)+(5*0)+(4*8)+(3*3)+(2*1)+(1*6)=119
119 % 10 = 9
So 128083-16-9 is a valid CAS Registry Number.

128083-16-9Downstream Products

128083-16-9Relevant articles and documents

Reaction of 3,4-dihydro-2H-thiopyran with phenylhydrazines. Synthesis of homothiotryptophols

Tokmakov,Grandberg

, p. 1134 - 1139 (2007/10/02)

The reaction between 3,4-dihydro-2H-thiopyran and phenylhydrazines leads to S-tetrahydrothiopyranyl derivatives of 3-(3-indolyl)propanethiols (homothiotryptophols). The removal of the tetrahydrothiopyranyl protective grouping in these compounds and the production of homothiotryptophols can be realized as a result of acidic hydrolyis in the presence of phenylhydrazines.

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