145904-50-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 145904-50-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,5,9,0 and 4 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 145904-50:
(8*1)+(7*4)+(6*5)+(5*9)+(4*0)+(3*4)+(2*5)+(1*0)=133
133 % 10 = 3
So 145904-50-3 is a valid CAS Registry Number.
InChI:InChI=1/C18H16O7/c19-13(7-12-2-5-15(21)17(23)9-12)10-25-18(24)6-3-11-1-4-14(20)16(22)8-11/h1-6,8-9,20-23H,7,10H2/b6-3+
145904-50-3Relevant articles and documents
Isolation and synthesis of a new bio-antimutagen, petasiphenol, from scapes of Petasites japonicum.
Iriye,Furukawa,Nishida,Kim,Fukami
, p. 1773 - 1775 (2007/10/02)
A new bio-antimutagen, petasiphenol [3-(3,4-dihydroxyphenyl)-2-oxopropyl caffeate] (1) was isolated from scapes of Petasites japonicum (AD50 = 95 micrograms/ml against UV-induced mutagenic E. coli WP2 B/r Trp-. Petasiphenol (1) and its isomer (2) were syn