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255861-19-9

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255861-19-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 255861-19-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,5,8,6 and 1 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 255861-19:
(8*2)+(7*5)+(6*5)+(5*8)+(4*6)+(3*1)+(2*1)+(1*9)=159
159 % 10 = 9
So 255861-19-9 is a valid CAS Registry Number.

255861-19-9Downstream Products

255861-19-9Relevant articles and documents

Comparison of approaches to ent-morphine via radical, cationic, and heck-type cyclizations

Frey, Dean A.,Duan, Caiming,Ghiviriga, Ion,Hudlicky, Tomas

, p. 561 - 569 (2000)

3-(2-|6S-12-Bromo-6-methoxyphenoxy)-5S-[tert-buty](dimethyl)silyloxy) cyclohex-1-en-1-yl|-ethyl)oxazol-2(3H)-one 14 was subjected to Heck cyclization conditions to afford dibenzofuran derivative 16. The comparison of stepwise vs cascade approaches to 8 vi

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