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181780-34-7

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181780-34-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 181780-34-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,1,7,8 and 0 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 181780-34:
(8*1)+(7*8)+(6*1)+(5*7)+(4*8)+(3*0)+(2*3)+(1*4)=147
147 % 10 = 7
So 181780-34-7 is a valid CAS Registry Number.

181780-34-7Relevant articles and documents

Synthesis of Carbamate Protected Spermidine Homologues Through α,ω-Alkanediamines

Arasujo, M. Joso S. M. P.,Ragnarsson, Ulf,Trigo, M. Joaquina S. A. Amaral,Almeida, M. Lurdes S.

, p. 2143 - 2161 (2007/10/03)

The total synthesis of three triamines selectively protected in the primary amino groups (1a-c) and two triamines protected in the secondary amino function and in one of the primary amino functions (2a and 2c), based on a simple and efficient procedure, is described.

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