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125016-55-9

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125016-55-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 125016-55-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,5,0,1 and 6 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 125016-55:
(8*1)+(7*2)+(6*5)+(5*0)+(4*1)+(3*6)+(2*5)+(1*5)=89
89 % 10 = 9
So 125016-55-9 is a valid CAS Registry Number.

125016-55-9Relevant articles and documents

ADDITION OF AMINOKETENE DITHIOACETALS TO α,β-UNSATURATED KETONES. SYNTHESIS AND REACTIONS OF CYCLOHEX-2-EN-1,4-DIONE MONODITHIOACETALS

Page, Philip C. Bulman,Harkin, Shaun A,Marchington, Allan P.,Niel, Monique B. van

, p. 3819 - 3838 (2007/10/02)

Aminoketene dithioacetals add to α,β-unsaturated ketones to give 1,5-diketones after hydrolytic work-up.Upon treatment with acid or base, these diketones suffer intramolecular aldol reactions yielding cyclohex-2-en-1,4-dione monodithioacetals, interesting and useful synthetic equivalents of cyclohex-2-en-1,4-diones which readily undego conjugate addition and cycloaddition reactions.

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