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421576-50-3

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421576-50-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 421576-50-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,1,5,7 and 6 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 421576-50:
(8*4)+(7*2)+(6*1)+(5*5)+(4*7)+(3*6)+(2*5)+(1*0)=133
133 % 10 = 3
So 421576-50-3 is a valid CAS Registry Number.

421576-50-3Relevant articles and documents

Novel chemistry of abdominal defensive glands of nymphalid butterfly Agraulis vanillae

Ross, Gary N.,Fales, Henry M.,Lloyd, Helen A.,Jones, Tappey,Sokoloski, Edward A.,Marshall-Batty, Kimberly,Blum, Murray S.

, p. 1219 - 1228 (2001)

Abdominal defensive glands of both sexes of the Gulf fritillary butterfly, Agraulis vanillae (Linnaeus) (Nymphalidae:Heliconiinae) emit a pronounced odor when disturbed. We have identified 6-methyl-5-hepten-2-one; oleic, palmitic, and stearic esters of the corresponding alcohol 6-methyl-5-hepten-2-ol; hexadecyl acetate; 1,16-hexadecanediol diacetate; and 1,15-hexadecanediol diacetate in the glandular exudate. Since we have determined that free-flying birds or birds in a butterfly conservatory discriminate against A. vanillae as prey, we suggest that the constituents in the glands may play a defensive role against potential avian predators.

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