27959-26-8 Usage
Originator
Cholexamine,Kyorin,Japan,1971
Manufacturing Process
To a mixture of 60 cc of benzene, 40 cc of pyridine and 17 g of hydrochloric
acid salt of nicotinic acid chloride, was added 4.5 g of 2,2,6,6-
tetramethylolcyclohexanol, and the whole mixture was refuxed at 75°C to
80°C for 2.5 hours. After the mixture was cooled water was added. Precipitate
formed was separated by filtration, washed thoroughly with water and dried.
Recrystallization from dilute acetic acid gave 14 g of the final compound,
melting point 177°C to 180°C.
Check Digit Verification of cas no
The CAS Registry Mumber 27959-26-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,9,5 and 9 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 27959-26:
(7*2)+(6*7)+(5*9)+(4*5)+(3*9)+(2*2)+(1*6)=158
158 % 10 = 8
So 27959-26-8 is a valid CAS Registry Number.
InChI:InChI=1/C34H32N4O9/c39-28(24-6-1-12-35-16-24)44-20-33(21-45-29(40)25-7-2-13-36-17-25)10-5-11-34(32(33)43,22-46-30(41)26-8-3-14-37-18-26)23-47-31(42)27-9-4-15-38-19-27/h1-4,6-9,12-19,32,43H,5,10-11,20-23H2
27959-26-8Relevant articles and documents
Synthetic method of nemadectin (by machine translation)
-
, (2020/09/21)
In the process of preparing the intermediate 1, the yield of the intermediate 2 is greatly improved, and when the intermediate 2 and paraformaldehyde are reacted to prepare the nicotinoyl chloride hydrochloride, the hydrochloride is reacted with the intermediate 2 to form the intermediate 2. (by machine translation)
