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90432-92-1

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90432-92-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90432-92-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,4,3 and 2 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 90432-92:
(7*9)+(6*0)+(5*4)+(4*3)+(3*2)+(2*9)+(1*2)=121
121 % 10 = 1
So 90432-92-1 is a valid CAS Registry Number.

90432-92-1Relevant articles and documents

(1RS,4SR,5RS)-4-(5-Hydroxy-4,8-dimethyl-7-nonen-1-yl)-4-methyl-3,8-dioxabicyclooctane-1-acetic Acid from Geraniol

Hajos, Zoltan G.,Wachter, Michael P.,Werblood, Harvey M.,Adams, Richard E.

, p. 2600 - 2608 (1984)

(E)-Geraniol (4) has been converted via 13 steps involving epoxidations, hydrolytic epoxide ring opening, and two ring closures to the key intermediate 3,8-dioxabicyclooctane alcohol 10 having stereochemical integrity at all three centers of asymmetry.Extension of the three-carbon side chain of 10 and attachment of the acetic acid side chain at C-1 in nine steps completed the geraniol-based total synthesis of the zoapatanol related bicyclic acid 3.The total synthesis of 3 from the ketal-ketone 5 has also been described.

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