7181-73-9 Usage
Originator
Alcopar,Wellcome,UK,1960
Manufacturing Process
First, dimethylamino-2-phenoxyethanewas made by reacting chloro-2-
phenoxyethane with dimethylamine. Benzyl chloride (10 grams) was then
added to a solution of 1-dimethylamino-2-phenoxyethane (12.3 grams) in
acetone (35 ml). The mixture warmed spontaneously and N-benzyl-N,Ndimethyl-N-2-phenoxyethylammonium chloride slowly crystallized. After 24
hours, this solid was filtered off, washed with fresh acetone and dried
immediately in vacuo, MP 135°-136°C.
2-Hydroxy-3-naphthoic acid (1.88 grams) was dissolved in hot aqueous
sodium hydroxide (0.5N; 20 ml) and the resulting solution was slowly added
to a solution of N-benzyl-N,N-dimethyl-N-2-phenoxyethylammonium chloride
(2.9 grams) in water (5 ml). A gum separated at first but it solidified on
scratching. After the addition was complete, the mixture was allowed to stand
at room temperature for 2 hours and then filtered. The residue was washed
with water and dried in vacuo to give N-benzyl-N,N-dimethyl-N-2-
phenoxyethylammonium 2-hydroxy-3-naphthoate, MP 170°-171°C.
Therapeutic Function
Anthelmintic
Check Digit Verification of cas no
The CAS Registry Mumber 7181-73-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,1,8 and 1 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 7181-73:
(6*7)+(5*1)+(4*8)+(3*1)+(2*7)+(1*3)=99
99 % 10 = 9
So 7181-73-9 is a valid CAS Registry Number.
InChI:InChI=1/C17H22NO/c1-18(2,15-16-9-5-3-6-10-16)13-14-19-17-11-7-4-8-12-17/h3-12H,13-15H2,1-2H3/q+1