299918-93-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 299918-93-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,9,9,1 and 8 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 299918-93:
(8*2)+(7*9)+(6*9)+(5*9)+(4*1)+(3*8)+(2*9)+(1*3)=227
227 % 10 = 7
So 299918-93-7 is a valid CAS Registry Number.
299918-93-7Relevant academic research and scientific papers
Synthesis of 3-substituted 4,4-dimethyl-2-oxaspiro[5.5]undecane-1,5-diones
Kirillov,Shchepin,Litvinov
, p. 979 - 981 (2007/10/03)
Alkyl 1-(2-bromoisobutyryl)cyclohexanecarboxylates react with zinc and aliphatic, unsaturated, and aromatic aldehydes to give 3-substituted 4,4-dimethyl-2-oxaspiro[5.5]undecane-1,5-diones.
