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77003-54-4

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77003-54-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77003-54-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,0,0 and 3 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 77003-54:
(7*7)+(6*7)+(5*0)+(4*0)+(3*3)+(2*5)+(1*4)=114
114 % 10 = 4
So 77003-54-4 is a valid CAS Registry Number.

77003-54-4Relevant articles and documents

Studies Related to Maytansinoids

Barton, Derek H. R.,Gero, Stephen D.,Maycock, Christopher D.

, p. 1089 - 1091 (1980)

A rapid and high yielding route to optically active β-carbamoyloxy ketones of use in the synthesis of maytansinoids has been devised, starting from quinic acid.

Synthesis of Enantiomerically Pure Substituted Cyclopentenes from (-)-Quinic Acid

Barriere, Jean-Claude,Cleophax, Jeanine,Gero, Stephan D.,Vuilhorgne, Marc

, p. 296 - 307 (2007/10/02)

The synthesis of a large variety of enantiomerically pure substituted reactive cyclopentenes 16, 23, 24 and 28 have been synthesized from the readily available (-)-quinic acid 1.The straightforward strategy involves a high-yielding intramolecular aldoliza

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