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71953-76-9

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71953-76-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 71953-76-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,9,5 and 3 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 71953-76:
(7*7)+(6*1)+(5*9)+(4*5)+(3*3)+(2*7)+(1*6)=149
149 % 10 = 9
So 71953-76-9 is a valid CAS Registry Number.

71953-76-9Downstream Products

71953-76-9Relevant articles and documents

Stereochemical and NMR Reassignment of 6-Norlysergic Acid Diethylamide and 6-Nor-6-allyllysergic Acid Diethylamide

Stachulski, Andrew V.,Nichols, David E.,Scheinmann, Feodor

, p. 30 - 31 (2007/10/03)

Conditions are described for the preparation of a salt of 8β-norlysergic acid diethylamide (8β-nor-LSD) 1 as a single epimer from cyanamide 3, whereas earlier preparations gave mixtures of 1 with the 8α epimer 4 in variable proportions: the earlier NMR assignment of 1 is amended and the N(6) alkylation of 1 and 4 with allyl bromide is discussed.

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