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65248-81-9

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65248-81-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 65248-81-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,5,2,4 and 8 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 65248-81:
(7*6)+(6*5)+(5*2)+(4*4)+(3*8)+(2*8)+(1*1)=139
139 % 10 = 9
So 65248-81-9 is a valid CAS Registry Number.

65248-81-9Relevant articles and documents

A new protocol for the synthesis of N(1)-unsubstituted 2-substituted 2 imidazolines

Jones, Raymond C. F.,Dimopoulos, Paschalis

, p. 2061 - 2074 (2007/10/03)

Lateral metallation at C-2(α) of 1-tert-butoxycarbonyl-2-methyl-2- imidazoline followed by reaction with a range of C-electrophiles and deprotection with TFA reliably affords N(1)-unsubstituted 2-substituted 2- imidazolines; P- or Se-electrophiles lead to 2-alkenyl-2-imidazolines via Wadsworth-Emmons or selenoxide elimination protocols. (C) 2000 Elsevier Science Ltd.

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