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1161720-15-5

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1161720-15-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1161720-15-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,6,1,7,2 and 0 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1161720-15:
(9*1)+(8*1)+(7*6)+(6*1)+(5*7)+(4*2)+(3*0)+(2*1)+(1*5)=115
115 % 10 = 5
So 1161720-15-5 is a valid CAS Registry Number.

1161720-15-5Relevant articles and documents

Synthetic studies on natural isocoumarins and isocarbostyril derivatives having an alkyl substituent at the 3-position: Total synthesis of scoparines A and B, and ruprechstyril

Rudyanto, Marcellino,Kobayashi, Koichi,Honda, Toshio

experimental part, p. 753 - 764 (2009/12/26)

Two isocoumarins, scoparines A and B, having n-propyl group at the 3-position, and a new isocarbostyril, ruprechstyril, bearing n-pentyl substituent at the 3-position were synthesized via Sonogashira coupling of the corresponding aromatic halides and alky

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