10172-03-9 Usage
Description
A second bisbenzylisoquinoline base from Limacia cuspidata (Miers.) Hook. f. et
Thorn., the alkaloid is separated from the accompanying !imacine by chromato?
graphy on a silica column. It crystallizes in colourless prisms from MeOH-Me2 CO
and has [α]D + 110° (CHCI3). One hydroxyl group is present and the alkaloid
yields the O-methyl ether as colourless needles, m.p. 210-2° C; [α]D + 90°,
(CHCI3), shown to be identical with N-methyl-dihydroepistephanine B. The
structure has been established by chemical interconversions with limacine and
cuspidaline (q.v.).
References
Tomita, Furukawa., Tetrahedron Lett., 4293 (I 966)
Structure:
Tomita, Furukawa, Fukagawa., l. Pharm. Soc., lapan, 87,793 (I967)
Check Digit Verification of cas no
The CAS Registry Mumber 10172-03-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,0,1,7 and 2 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 10172-03:
(7*1)+(6*0)+(5*1)+(4*7)+(3*2)+(2*0)+(1*3)=49
49 % 10 = 9
So 10172-03-9 is a valid CAS Registry Number.
