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36556-53-3

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36556-53-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 36556-53-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,6,5,5 and 6 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 36556-53:
(7*3)+(6*6)+(5*5)+(4*5)+(3*6)+(2*5)+(1*3)=133
133 % 10 = 3
So 36556-53-3 is a valid CAS Registry Number.

36556-53-3Upstream product

36556-53-3Downstream Products

36556-53-3Relevant articles and documents

Complementary Site-Selective Halogenation of Nitrogen-Containing (Hetero)Aromatics with Superacids

Mamontov, Alexander,Martin-Mingot, Agnès,Métayer, Benoit,Karam, Omar,Zunino, Fabien,Bouazza, Fodil,Thibaudeau, Sébastien

supporting information, p. 10411 - 10416 (2020/07/30)

Site-selective functionalization of arenes that is complementary to classical aromatic substitution reactions remains a long-standing quest in organic synthesis. Exploiting the generation of halenium ion through oxidative process and the protonation of the nitrogen containing function in HF/SbF5, the chlorination and iodination of classically inert Csp2?H bonds of aromatic amines occurs. Furthermore, the superacid-promoted (poly)protonation of the molecules acts as a protection, favoring the late-stage selective halogenation of natural alkaloids and active pharmaceutical ingredients.

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