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663934-39-2

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663934-39-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 663934-39-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,3,9,3 and 4 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 663934-39:
(8*6)+(7*6)+(6*3)+(5*9)+(4*3)+(3*4)+(2*3)+(1*9)=192
192 % 10 = 2
So 663934-39-2 is a valid CAS Registry Number.

663934-39-2Downstream Products

663934-39-2Relevant articles and documents

A concise synthesis of 2-diarylphosphino-2′-methoxy-1,1′- binaphthalenes (MOPs) by simple resolution

Luo, Yunfei,Wang, Feng,Zhu, Gangguo,Zhang, Zhaoguo

, p. 17 - 19 (2004)

A practical synthesis of 2-diarylphosphino-2′-methoxy-1,1′- binaphthalene (MOPs) was provided by employing the etherification of 1,1′-bi-2,2′-naphthol on zeolite; the ring opening of the ether with lithium; the reaction with chlorodiaryl phosphine and the

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