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cis-2-chloro-5-(chloromethyl)-5-methyl-2-oxo-1,3,2-dioxaphosphorinane is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

21071-81-8

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21071-81-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21071-81-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,0,7 and 1 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 21071-81:
(7*2)+(6*1)+(5*0)+(4*7)+(3*1)+(2*8)+(1*1)=68
68 % 10 = 8
So 21071-81-8 is a valid CAS Registry Number.

21071-81-8Relevant academic research and scientific papers

Phosphorochloridates from phosphorohydrazides with ButOCl: Stereospecificity, selectivity and phosphorylium ion intermediates

Harger, Martin J.P

, p. 6749 - 6752 (2001)

The efficiency with which a six-membered cyclic phosphorochloridate can be obtained from the corresponding hydrazide with retention of configuration at phosphorus, using tert-butyl hypochlorite in tert-butyl alcohol, depends on how stereoelectronic factors influence the fate of an intermediate chloride-phosphorylium ion pair.

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