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115890-68-1

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115890-68-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 115890-68-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,5,8,9 and 0 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 115890-68:
(8*1)+(7*1)+(6*5)+(5*8)+(4*9)+(3*0)+(2*6)+(1*8)=141
141 % 10 = 1
So 115890-68-1 is a valid CAS Registry Number.

115890-68-1Downstream Products

115890-68-1Relevant articles and documents

Structure of Hydroazulenoid Diterpens from a Marine Alga and Their Absolute Configuration Based on Circular Dichroism

Vazquez, Jesus T.,Chang, Mayland,Nakanishi, Koji,Manta, Eduardo,Perez, Cirilo,Martin, Julio D.

, p. 4797 - 4800 (1988)

First, we describe the isolation of three new diterpenoids with a hydroazulene skeleton, dictyotriol C (1), D (2) and E (3), as well as the previously known pachydictyol A (4), dictyol B (5), dictyol C (6), and dictyotadiol (7), from a Dictyota sp.The structures of the new diterpenoids 1-3 were proposed on the basis of their spectral data and confirmed by chemical transformation of dictyol B (5).This is followed by absolute configuration studies, based on the circular dichroic (CD) allylic benzoate method.The absolute stereochemistries of the new compounds as well asthat of the known dictyol B (5) and dictyotadiol (7) were determined.These absolute configurations were opposite to that reported for pachydictyol A (4).

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