129085-05-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129085-05-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,0,8 and 5 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 129085-05:
(8*1)+(7*2)+(6*9)+(5*0)+(4*8)+(3*5)+(2*0)+(1*5)=128
128 % 10 = 8
So 129085-05-8 is a valid CAS Registry Number.
129085-05-8Relevant articles and documents
Phase Transfer Catalyzed Alkylation: an Efficient Protection of Acid Labile Hemiketals
Suryawanshi, S.N.,Mukhopadhyay, A.,Bhakuni, D.S.
, p. 687 - 691 (2007/10/02)
The reaction of hemiketals (1-6) with sodium hydroxide and methyl iodide in the presence of TBAI as a catalyst furnished methoxy hemiketals (7-10) in more then 90percent yield.
