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626254-99-7

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626254-99-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 626254-99-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,2,6,2,5 and 4 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 626254-99:
(8*6)+(7*2)+(6*6)+(5*2)+(4*5)+(3*4)+(2*9)+(1*9)=167
167 % 10 = 7
So 626254-99-7 is a valid CAS Registry Number.

626254-99-7Relevant articles and documents

Lasonolide A: Synthesis of A and B rings via a cycloetherification strategy

Hart, David J.,Patterson, Suzanne,Unch, James P.

, p. 1334 - 1338 (2007/10/03)

Syntheses of tetrahydropyrans ent-2 and ent-3, substructures of the A and B rings of the enantiomer of lasonolide A (1), are described. The syntheses of ent-2 and ent-3 feature highly stereo-selective cycloetherification reactions of bis-homoallylic alcoh

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