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81608-89-1

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81608-89-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81608-89-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,6,0 and 8 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 81608-89:
(7*8)+(6*1)+(5*6)+(4*0)+(3*8)+(2*8)+(1*9)=141
141 % 10 = 1
So 81608-89-1 is a valid CAS Registry Number.

81608-89-1Downstream Products

81608-89-1Relevant articles and documents

Metabolites of the Higher Fungi. Part 19. Serpenone, 3-Methoxy-4-methyl-5-prop-1-enylfuran-2(5H)-one, a new γ-Butyrolactone from the Fungus Hypoxylon serpens (Barrons strain) (Persoon ex Fries)Kickx

Anderson, John R.,Edwards, Raymond L.,Whalley, Anthony J. S.

, p. 215 - 222 (2007/10/02)

Culture solutions of the fungus Hypoxylon serpens (Barrons strain) contain a new butyrolactone as the major metabolite, which has been identified as 3-methoxy-4-methyl-5-prop-1-enylfuran-2(5H)-one (2),and small quantities of the reduced analogue, 3-methoxy-4-methyl-5-propylfuran-2(5H)-one (3); the structures have been established by synthesis of compound (3).A new rapid synthesis of the isomeric 4-methoxy-3,5-disubstituted analogues is described and the two groups of compounds are compared spectroscopically.

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