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423767-16-2

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423767-16-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 423767-16-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,3,7,6 and 7 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 423767-16:
(8*4)+(7*2)+(6*3)+(5*7)+(4*6)+(3*7)+(2*1)+(1*6)=152
152 % 10 = 2
So 423767-16-2 is a valid CAS Registry Number.

423767-16-2Downstream Products

423767-16-2Relevant articles and documents

Stereochemical considerations on the stereoselective cyclopropanation reactions of 3-aryl-2-phosphonoacrylates induced by the (-)-8-phenylmenthyl group as a chiral auxiliary

Takagi, Ryukichi,Hashizume, Miki,Nakamura, Minoru,Begum, Shahnaz,Hiraga, Yoshikazu,Kojima, Satoshi,Ohkata, Katsu

, p. 179 - 190 (2007/10/03)

The cyclopropanation of (-)-8-phenylmenthyl (E)-3-aryl-2-phosphonoacrylates E-3a-d with dimethyloxosulfonium methylide and diazomethane affords the corresponding trans cyclopropane derivatives as the major diastereomers with high diastereoselectivity. On

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