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139561-17-4

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139561-17-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139561-17-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,5,6 and 1 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 139561-17:
(8*1)+(7*3)+(6*9)+(5*5)+(4*6)+(3*1)+(2*1)+(1*7)=144
144 % 10 = 4
So 139561-17-4 is a valid CAS Registry Number.

139561-17-4Relevant articles and documents

A versatile synthetic approach to grandisol monoterpene pheromone

Han, Young Taek,Kim, Nam-Jung,Jung, Jong-Wha,Yun, Hwayoung,Lee, Sujin,Suh, Young-Ger

experimental part, p. 1437 - 1442 (2012/04/23)

A versatile and efficient synthetic procedure for the grandisol pheromone library has been established. The key feature of our synthesis involves a versatile and highly regioselective Pd(0)-catalyzed intramolecular allylic alkylation for the key cyclobutane skeleton of grandisol. In this connection, the concise synthesis of (±)-grandisol as well as mechanism study of Pd(0)-catalyzed regioselective cyclization as a key reaction have also been accomplished.

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