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133759-50-9

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133759-50-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 133759-50-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,7,5 and 9 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 133759-50:
(8*1)+(7*3)+(6*3)+(5*7)+(4*5)+(3*9)+(2*5)+(1*0)=139
139 % 10 = 9
So 133759-50-9 is a valid CAS Registry Number.

133759-50-9Relevant articles and documents

6beta-Acetoxynortropane: a potent muscarinic agonist with apparent selectivity toward M2-receptors.

Pei,Gupta,Badio,Padgett,Daly

, p. 2047 - 2055 (1998)

A series of tropane derivatives, related in structure to baogongteng A (1), an alkaloid from a Chinese herb, were synthesized. 6beta-Acetoxynortropane (5) had weak affinity (Ki 22 microM) for central (M1) muscarinic receptors in a [3H]quinuclidinyl benzil

Structure of the Calystegines: New alkaloids of the nortropane family

Ducrot,Lallemand

, p. 3879 - 3882 (2007/10/02)

Three new alkaloids have been isolated from Calystegia sepium; their structures have been established from their 1H and 13C N.M.R. spectra, and confirmed by the synthesis of model compounds.

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