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639820-88-5

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639820-88-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 639820-88-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,9,8,2 and 0 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 639820-88:
(8*6)+(7*3)+(6*9)+(5*8)+(4*2)+(3*0)+(2*8)+(1*8)=195
195 % 10 = 5
So 639820-88-5 is a valid CAS Registry Number.

639820-88-5Downstream Products

639820-88-5Relevant articles and documents

Rigidified acetylcholine mimics: Conformational requirements for binding to neuronal nicotinic receptors

Villeneuve, Gerald,Cecyre, Danielle,Lejeune, Helene,Drouin, Marc,Lan, Ruoxi,Quirion, Remi

, p. 3847 - 3851 (2007/10/03)

Rigidified derivatives have been designed and synthesized assuming the g+t conformer of acetylcholine (N-C-C-O=+60°, C-C-O-C=180°) as active conformation for binding to cytisine sensitive neuronal nicotinic receptors. The SAR of the compounds evaluated, along with those of more flexible analogues, support the g+t conformer hypothesis and highlight the stringent steric limitation of this nicotinic receptor sub-type. Compound 3e has low μM affinity for cytisine sensitive nicotinic receptor binding sites while being selective with regard to the α-bungarotoxin sensitive subclass. We also report few compounds with μM affinity for the α-bungarotoxin sensitive subclass.

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