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52336-73-9

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52336-73-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 52336-73-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,3,3 and 6 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 52336-73:
(7*5)+(6*2)+(5*3)+(4*3)+(3*6)+(2*7)+(1*3)=109
109 % 10 = 9
So 52336-73-9 is a valid CAS Registry Number.

52336-73-9Relevant articles and documents

A Modular Access to (±)-Tubocurine and (±)-Curine - Formal Total Synthesis of Tubocurarine

Otto, Nicola,Ferenc, Dorota,Opatz, Till

, p. 1205 - 1217 (2017)

Two consecutive Cu-catalyzed Ullmann-type C-O couplings permitted the first successful entry toward the curare alkaloids (±)-tubocurine and (±)-curine. Starting from vanillin, the synthetic sequence comprises 15 linear steps and includes a total of 24 transformations. In addition, the total synthesis of tubocurine represents a formal total synthesis of the famous arrow poison alkaloid tubocurarine.

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