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440085-36-9

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440085-36-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 440085-36-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,0,0,8 and 5 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 440085-36:
(8*4)+(7*4)+(6*0)+(5*0)+(4*8)+(3*5)+(2*3)+(1*6)=119
119 % 10 = 9
So 440085-36-9 is a valid CAS Registry Number.

440085-36-9Upstream product

440085-36-9Downstream Products

440085-36-9Relevant articles and documents

Notable substituent effects on the rate constant of thermal denitrogenation of cyclic azoalkanes: Strong evidence for a stepwise denitrogenation mechanism

Ishihara, Chizuko,Abe, Manabu

, p. 1615 - 1618 (2010)

The thermal denitrogenation rates (k) of a series of 7,7-dimethoxy-1,4- diaryl-2,3-diazabicyclo[2.2.1]hept-2-ene derivatives 2 with a variety of aryl groups (p-CNC6H4, C6H5, p-MeC 6H4, p-MeOC6H4) were determined to investigate the denitrogenation mechanism. A linear correlation (r = 0.988) between the relative rate-constant (log krel) of the denitrogenation reaction and Arnold's σ α parameter for benzylic-type radical-stabilization was observed. However, the relative rate-constant was not correlated with the substituent effect on the lifetime of the resulting singlet diradicals DR2. These results indicate that the rate-determining step of denitrogenation of 7,7-dimethoxy-2,3-diazabicyclo[2.2. 1]hept-2-ene derivatives involves stepwise C-N bond cleavage. CSIRO 2010.

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