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dicyclopropylmethyl p-nitrobenzoate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

21872-39-9

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21872-39-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21872-39-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,8,7 and 2 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 21872-39:
(7*2)+(6*1)+(5*8)+(4*7)+(3*2)+(2*3)+(1*9)=109
109 % 10 = 9
So 21872-39-9 is a valid CAS Registry Number.

21872-39-9Downstream Products

21872-39-9Relevant academic research and scientific papers

Determining the σ-donor ability of the cyclopropane C-C bond

Fifer, Nathan L.,White, Jonathan M.

, p. 1776 - 1780 (2005)

The low temperature crystal structures of ester and ether derivatives of varying electron demand, derived from cyclopropylmethanol 8 and dicyclopropylmethanol 9, have been determined. These structures show a very strong response of the C-OR bond distance to the electron demand of the OR substituent, demonstrating the strong σ-donor ability of the strained C-C bonds in the cyclopropane ring. The Royal Society of Chemistry 2005.

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