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1615-98-1

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1615-98-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1615-98-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,6,1 and 5 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1615-98:
(6*1)+(5*6)+(4*1)+(3*5)+(2*9)+(1*8)=81
81 % 10 = 1
So 1615-98-1 is a valid CAS Registry Number.

1615-98-1Relevant articles and documents

Spiro-triterpenes from clay-catalysed rearrangement of hopenes: NMR structural elucidation and occurrence in a recent sediment

Hauke,Hauke, Verena,Trendel,Trendel, Jean M.,Albrecht,Albrecht, Pierre,Connan,Connan, Jacques

, p. 2227 - 2230 (1994)

Acidic K-10 montmorillonite clay-catalysed rearrangement of hop-22(29)-ene 5 and of hop-17(21)-ene 6 leads to the formation of small quantities of various fernenes and of new compounds, the 14-methyl-13,15-cyclo-B':A'-neo-26-nor-14,15-seco-18α-gammacer-7-ene 8 and its Δ8- and Δ9((11))-isomers 9 and 10, the structures of which have been established by MS and NMR spectroscopy. This novel hopane skeleton transposition also operates on bacterial sedimentary hopenes, as shown by GC-MS investigations of the alkene fraction from a recent lacustrine sediment.

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