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87929-18-8

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87929-18-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87929-18-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,9,2 and 9 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 87929-18:
(7*8)+(6*7)+(5*9)+(4*2)+(3*9)+(2*1)+(1*8)=188
188 % 10 = 8
So 87929-18-8 is a valid CAS Registry Number.

87929-18-8Downstream Products

87929-18-8Relevant articles and documents

Studies on the addition of Grignard reagents and metal hydrides to α-oxoketene N,S-acetals

Balu,Bhat,Ila,Junjappa

, p. 250 - 255 (2007/10/02)

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1,4-DIANION OF ACETOPHENONE N-ETHOXYCARBONYLHYDRAZONE AS A SYNTHETIC INTERMEDIATE

Matsumura, Noboru,Kunugihara, Akira,Yoneda, Shigeo

, p. 3239 - 3242 (2007/10/02)

Various β-hydroxyketones and α,β-unsaturated ketones were prepared by the reaction of aldehydes and ketones with 1,4-dianion (2) which is derived from acetophenone N-ethoxycarbonylhydrazone (1) with butyllithium.In the reaction of 2 with carbonyl compounds such as ester, amide, acid anhydride, acyl chloride, and alkyl carbonate, pyrazole derivatives were obtained in good yields.

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