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123239-69-0

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123239-69-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 123239-69-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,2,3 and 9 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 123239-69:
(8*1)+(7*2)+(6*3)+(5*2)+(4*3)+(3*9)+(2*6)+(1*9)=110
110 % 10 = 0
So 123239-69-0 is a valid CAS Registry Number.

123239-69-0Downstream Products

123239-69-0Relevant articles and documents

Ruthenium-catalyzed coupling of α-carbonyl phosphoniums with sulfoxonium ylidesviaC-H activation/Wittig reaction sequences

Chen, Tian,Ding, Zhiqiang,Guan, Yuqiu,Zhang, Ruike,Yao, Jinzhong,Chen, Zhangpei

supporting information, p. 2665 - 2668 (2021/03/16)

A Ru(ii)-catalyzed coupling of various α-carbonyl phosphoniums with sulfoxonium ylides has been realized for the facile synthesis of 1-naphthols in good to excellent yields. This oxidant-free transformation proceeds through Ru-catalyzed C-H activation of phosphoniums, Ru-carbene insertion, and intramolecular Wittig reaction processes.

Regioselectivity in the Acid-Catalyzed Isomerization of 2-Substituted 1,4-Dihydro-1,4-epoxynaphthalenes

Batt, Douglas G.,Jones, David G.,Greca, Susan La

, p. 6704 - 6708 (2007/10/02)

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