129944-99-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129944-99-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,9,4 and 4 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 129944-99:
(8*1)+(7*2)+(6*9)+(5*9)+(4*4)+(3*4)+(2*9)+(1*9)=176
176 % 10 = 6
So 129944-99-6 is a valid CAS Registry Number.
InChI:InChI=1/C16H19NO5/c1-2-17-11-6-7-12(17)14(13(11)15(19)20)22-16(21)9-4-3-5-10(18)8-9/h3-5,8,11-14,18H,2,6-7H2,1H3,(H,19,20)/t11?,12?,13-,14+/m1/s1
129944-99-6Relevant articles and documents
An Efficient Synthesis of m-Hydroxycocaine and m-Hydroxybenzoylecgonine, Two Metabolites of Cocaine
Tamagnan, Gilles,Gao, Yigong,Bakthavachalam, Venkatesalu,White, William L.,Neumeyer, John L.
, p. 5861 - 5864 (1995)
An efficient pathway for the preparation of m-hydroxycocaine (6) and m-hydroxybenzoylecgonine (7) is described.