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511552-35-5

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511552-35-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 511552-35-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,1,1,5,5 and 2 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 511552-35:
(8*5)+(7*1)+(6*1)+(5*5)+(4*5)+(3*2)+(2*3)+(1*5)=115
115 % 10 = 5
So 511552-35-5 is a valid CAS Registry Number.

511552-35-5Relevant articles and documents

Prenyl carbamates: Preparation and deprotection

Vatèle, Jean-Michel

, p. 4251 - 4260 (2004)

Prenyloxycarbonylimidazole (PreocIm) and prenyl p-nitrophenyl carbonate (PreocOC6H4p-NO2), two substitutes for the unstable prenyl chloroformate, allowed an efficient introduction of the prenyloxycarbonyl group to a variety of primary and secondary amines. Deprotection of prenyl carbamates was readily achieved by, first their conversion to 2-iodo-3-methoxy-3-methylbutyl carbamates with iodine in methanol followed by reductive β-elimination with zinc powder. These reaction conditions are compatible with the presence of a number of functional groups such as Boc and Cbz carbamates, sulfides, double bonds, indoles and aromatic ethers.

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