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13523-07-4

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13523-07-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 13523-07-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,5,2 and 3 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 13523-07:
(7*1)+(6*3)+(5*5)+(4*2)+(3*3)+(2*0)+(1*7)=74
74 % 10 = 4
So 13523-07-4 is a valid CAS Registry Number.

13523-07-4Relevant articles and documents

Palladium/Norbornene-Catalyzed Indenone Synthesis from Simple Aryl Iodides: Concise Syntheses of Pauciflorol F and Acredinone A

Liu, Feipeng,Dong, Zhe,Wang, Jianchun,Dong, Guangbin

, p. 2144 - 2148 (2019)

To show the synthetic utility of palladium/norbornene (Pd/NBE) cooperative catalysis, here we report concise syntheses of indenone-based natural products, pauciflorol F and acredinone A, which are enabled by direct annulation between aryl iodides and unsa

Total synthesis of (±)-heliannuol D, an allelochemical from Helianthus annuus

Vyvyan, James R.,Looper, Ryan E.

, p. 1151 - 1154 (2007/10/03)

The total synthesis of (±)-heliannuol D and its epimer has been completed in 9 steps and 12% overall yield from 2-methylanisole. The benzoxepane moiety of the title compound, a common structural feature in the heliannuol family of natural products, is pre

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