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1609986-27-7

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1609986-27-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1609986-27-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,0,9,9,8 and 6 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1609986-27:
(9*1)+(8*6)+(7*0)+(6*9)+(5*9)+(4*8)+(3*6)+(2*2)+(1*7)=217
217 % 10 = 7
So 1609986-27-7 is a valid CAS Registry Number.

1609986-27-7Relevant articles and documents

Disassembly kinetics of quinone-methide-based self-immolative spacers that contain aromatic nitrogen heterocycles

Alouane, Ahmed,Labruere, Raphael,Silvestre, Katherine J.,Le Saux, Thomas,Schmidt, Frederic,Jullien, Ludovic

supporting information, p. 1334 - 1340 (2014/05/06)

We prepared several pyridine- and pyrimidine-based self-immolative spacer groups to evaluate the significance of the resonance energy of the spacer aromatic ring on the kinetics of 1,4- and 1,6-elimination reactions, which govern spacer disassembly. Subsequently, we relied on a photoactivation procedure to accurately analyze the disassembly kinetics. Beyond providing new results that are relevant for deriving quantitative structure-property relationships, herein, we demonstrate that pH value can be used as an efficient parameter to finely control the disassembly time of a self-immolative spacer after an initial activation. Burn rubber: Kinetic analysis of the pH-dependent disassembly of self-immolative spacers that contain aromatic nitrogen heterocycles was performed. Electron-poor pyrimidine cores exhibited the longest disassembly times. This study confirms the trend that electron-rich aryl cores accelerate self-immolation.

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