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80992-51-4

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80992-51-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 80992-51-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,9,9 and 2 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 80992-51:
(7*8)+(6*0)+(5*9)+(4*9)+(3*2)+(2*5)+(1*1)=154
154 % 10 = 4
So 80992-51-4 is a valid CAS Registry Number.

80992-51-4Downstream Products

80992-51-4Relevant articles and documents

PHOTOCHEMICAL CYCLOADDITION OF α,β-ACETYLENIC KETONES WITH SIMPLE OLEFINS

Hussain, Saadat,Agosta, William C.

, p. 3301 - 3306 (2007/10/02)

Irradiation of 3-pentyn-2-one (1) in the presence of tetramethylethylene, isobutylene, and cis- and trans-2-butene leads to vinyldihydrofurans 3, 5, 6, 8, and 9 (Table 1) in a novel photochemical cycloaddition reaction.A related adduct 13 is formed between tetramethylethylene and 5,5-dimethyl-3-hexyn-2-one (2).A mechanism incorporating an initial biradical that closes to a carbene (eqn 3) is proposed to account for these reactions.

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