7242-04-8 Usage
Originator
Pengitoxin,Shanghai Lansheng
Manufacturing Process
Gitoxin is isolated from leaves of Digitalis purpurea L. genus Scrofphulariaceae.10.0 g pure gitoxin are boiled under reflux with 1 L pure acetic anhydride. Gitoxin thereby goes into solution in the course of 1 h. The boiling is discontinued after 1 h and the acetic anhydride distilled off in a vacuum as completely as possible. After taking up the oily residue with 500 ml chloroform, the solution is successively washed with 200 ml of 2 N potassium bicarbonate solution, 0.1 N hydrochloric acid and water. After drying the chloroform solution with anhydrous sodium sulfate, the chloroform is first distilled off over an open flame and then on a water bath at 40°C in a vacuum, a substantially crystalline residue thereby being obtained. The 12.8 g of crude product obtained are recrystallized from 12 times the amount of a mixture of pyridine, methanol and water (25:10:65) to give rhombic crystals, melting point 151°-155°C.
Therapeutic Function
Cardiotonic
Check Digit Verification of cas no
The CAS Registry Mumber 7242-04-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,2,4 and 2 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 7242-04:
(6*7)+(5*2)+(4*4)+(3*2)+(2*0)+(1*4)=78
78 % 10 = 8
So 7242-04-8 is a valid CAS Registry Number.
InChI:InChI=1/C51H74O19/c1-24-46(67-31(8)56)37(63-27(4)52)20-43(61-24)69-48-26(3)62-44(21-39(48)65-29(6)54)70-47-25(2)60-42(19-38(47)64-28(5)53)68-34-13-15-49(9)33(18-34)11-12-36-35(49)14-16-50(10)45(32-17-41(57)59-23-32)40(66-30(7)55)22-51(36,50)58/h17,24-26,33-40,42-48,58H,11-16,18-23H2,1-10H3/t24-,25-,26-,33-,34+,35+,36-,37+,38+,39+,40+,42+,43+,44+,45+,46-,47-,48-,49+,50-,51+/m1/s1
