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70051-15-9

70051-15-9

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70051-15-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 70051-15-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,0,5 and 1 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 70051-15:
(7*7)+(6*0)+(5*0)+(4*5)+(3*1)+(2*1)+(1*5)=79
79 % 10 = 9
So 70051-15-9 is a valid CAS Registry Number.

70051-15-9Relevant articles and documents

SYNTHESES TOTALES ET ETUDES DE LIGNANES BIOLOGIQUEMENT ACTIFS-III; APPLICATION DE L'α-HYDROXYALKYLATION DE β-BENZYL γ-BUTYROLACTONES A LA CREATION DES SQUELETTES PHENYL TETRALINE ET BISBENZOCYCLOOCTADIENE. PREMIERE SYNTHESE DES PICROSTEGANES, SYNTHESE FOR

Robin, Jean-Pierre,Dhal, Robert,Brown, Eric

, p. 3509 - 3520 (2007/10/02)

Kinetically controlled intramolecular α-hydroxyalkylation of a suitable diphenyl aldehyde lactone gave a dibenzocyclooctenolactone having a cis lactone-ring junction, such as (+/-)-picrostegane and (+/-)-isopicrostegane.Subsequent transformations led to t

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