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13265-71-9

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13265-71-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 13265-71-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,2,6 and 5 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 13265-71:
(7*1)+(6*3)+(5*2)+(4*6)+(3*5)+(2*7)+(1*1)=89
89 % 10 = 9
So 13265-71-9 is a valid CAS Registry Number.

13265-71-9Relevant articles and documents

A rapid synthesis of sphingosine from phytosphingosine

Sankar, Arumugam,Chen, I-Cheng,Luo, Shun-Yuan

, p. 1 - 5 (2018)

A simple and efficient protocol for the synthesis of a sphingosine starting from cost-effective phytosphingosine has been described. Two alternative synthetic pathway have been disclosed based on the use of two different kinds of protective groups for the protection of the amino group in the phytosphingosine. The protected phytosphingosine was subsequently transformed into sphingosine in 5 steps i.e. protection of the amine group, protection of 1,3-diol, leaving group insertion, elimination, and one-pot deprotection.

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