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129258-41-9

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129258-41-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129258-41-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,2,5 and 8 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 129258-41:
(8*1)+(7*2)+(6*9)+(5*2)+(4*5)+(3*8)+(2*4)+(1*1)=139
139 % 10 = 9
So 129258-41-9 is a valid CAS Registry Number.

129258-41-9Downstream Products

129258-41-9Relevant articles and documents

Synthesis and isomerization of tricyclo[7.3.1.02,7]tridecen-13-ones

Rostovskaya,Vysotskaya,Grigorchuk,Vysotskii

, p. 1414 - 1417 (2007/10/03)

Dehydration of 2-hydroxy-8-R-tricyclo[7.3.1.02,7]tridecan-13-ones (R = H, Me, Ph) effected by various reagents provided 8-R-tricyclo[7.3.1.02,7]tridecen-13-ones with different positions of the double bond. In the presence of phosphoric acid arise isomers with the double bond in 2(3) position, a mixture of hydrochloric and acetic acid primarily affords isomers with the double bond in 2(7) position that further migrates into 7(8) position at R = Me, Ph.

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