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75154-95-9

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75154-95-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75154-95-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,1,5 and 4 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 75154-95:
(7*7)+(6*5)+(5*1)+(4*5)+(3*4)+(2*9)+(1*5)=139
139 % 10 = 9
So 75154-95-9 is a valid CAS Registry Number.

75154-95-9Relevant articles and documents

Thermal -Sigmatropic Hydrogen Shifts: Stereochemistry, Kinetics, Isotope Effects, and ?-Facial Selectivity

Hoeger, Carl A.,Johnston, Allen D.,Okamura, William H.

, p. 4690 - 4698 (2007/10/02)

The antarafacial stereochemistry of the thermal -sigmatropic hydrogen shift has been demonstrated.The substrates studied include the epimeric cis-isotachysterol analogues 1 and 4 and their stereospecifically 15α-deuterium-labelled derivatives 7 and 1

Studies on Vitamin D (Calciferol) and Its Analogues. 18. The Vinylallene Approach to the 1-Hydroxyvitamin D System. New Sigmatropic Reactions in the Vitamin D Series

Condran, Patrick,Hammond, Milton L.,Mourino, Antonio,Okamura, William H.

, p. 6259 - 6267 (2007/10/02)

The thermally induced -sigmatropic hydrogen shift of the diastereomeric vitamin D type vinylallenols 6a (1R,6R), 6b (1R,6S), 7a (1S,6S) and vinylallenols 5a (6R) and 5b (6S) were studied.The 1S,6S (7b) and 1R,6R(6a) alcohols afforded ca. 60percent yi

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