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220728-76-7

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220728-76-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 220728-76-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,7,2 and 8 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 220728-76:
(8*2)+(7*2)+(6*0)+(5*7)+(4*2)+(3*8)+(2*7)+(1*6)=117
117 % 10 = 7
So 220728-76-7 is a valid CAS Registry Number.

220728-76-7Relevant articles and documents

An enantiocontrolled total synthesis of (-)-xanthorrhizol

Sato, Kenji,Bando, Toshikazu,Shindo, Mitsuru,Shishido, Kozo

, p. 11 - 15 (2007/10/03)

An efficient and enantiocontrolled total synthesis of natural (-)- xanthorrhizol (3) has been accomplished by employing the lipase-mediated asymmetric acetylation of the σ-symmetrical prochiral 2-aryl-1,3-propanediol (7) leading to the formation of the optically enriched monoacetate (6) as the key step.

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