138380-46-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138380-46-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,3,8 and 0 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 138380-46:
(8*1)+(7*3)+(6*8)+(5*3)+(4*8)+(3*0)+(2*4)+(1*6)=138
138 % 10 = 8
So 138380-46-8 is a valid CAS Registry Number.
InChI:InChI=1/C5H8O5/c1-2-10-5(9)3(6)4(7)8/h4,7-8H,2H2,1H3
138380-46-8Relevant articles and documents
Oxidation of diazo compounds by dimethyl dioxirane: An extremely mild and efficient method for the preparation of labile α-oxo-aldehydes
Ihmels,Maggini,Prato,Scorrano
, p. 6215 - 6218 (1991)
A novel method for the preparation of α-oxo-aldehydes by dimethyl dioxirane oxidation of α-diazoketones is described. The procedure is particularly useful when the desired compound cannot be purified by chromatography or distillation: the by-products (ace