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82776-92-9

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82776-92-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 82776-92-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,7,7 and 6 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 82776-92:
(7*8)+(6*2)+(5*7)+(4*7)+(3*6)+(2*9)+(1*2)=169
169 % 10 = 9
So 82776-92-9 is a valid CAS Registry Number.

82776-92-9Relevant articles and documents

Behavior of 2-phenyl-2,3-dihydro-1H-1,3-phenalenediones in formylation by Vilsmeier - Haak procedure

Artyukhova,Patsenker,Baumer,Musatov

, p. 1222 - 1223 (2002)

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Polycyclic Compounds: Part I - Synthesis and Reactions of 2-Aryl-3-hydroxyphenalen-1-ones

Ayyangar, N. R.,Joshi, S. V.,Lugade, A. G.

, p. 1043 - 1046 (2007/10/02)

The reaction of naphthalic anhydride (I) with arylacetic acids results in the formation of 3-hydroxy-2-arylphenalen-1-ones (IIa, IIb) and 3-arylmethylene-1H,3H-naphthopyran-1-ones (IVa, IVb).Complete spectral evidence in favour of structure (IIa)

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