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1631040-56-6

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1631040-56-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1631040-56-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,3,1,0,4 and 0 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1631040-56:
(9*1)+(8*6)+(7*3)+(6*1)+(5*0)+(4*4)+(3*0)+(2*5)+(1*6)=116
116 % 10 = 6
So 1631040-56-6 is a valid CAS Registry Number.

1631040-56-6Downstream Products

1631040-56-6Relevant articles and documents

Gold(I) as an artificial cyclase: Short stereodivergent syntheses of (-)-epiglobulol and (-)-4β,7α- and (-)-4α,7α- aromadendranediols

Carreras, Javier,Livendahl, Madeleine,McGonigal, Paul R.,Echavarren, Antonio M.

supporting information, p. 4896 - 4899 (2014/05/20)

Three natural aromadendrane sesquiterpenes, (-)-epiglobulol, (-)-4β,7α-aromadendranediol, and (-)-4α,7α- aromadendranediol, have been synthesized in only seven steps in 12, 15, and 17% overall yields, respectively, from (E,E)-farnesol by a stereodivergent gold(I)-catalyzed cascade reaction which forms the tricyclic aromadendrane core in a single step. These are the shortest total syntheses of these natural compounds.

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