651-97-8 Usage
Uses
3,6-Difluorophthalic acid is a fluorinated analog of phthalic acid (P384480). Phthalic acid is an organic reagent that is used to synthesize phthalates.
Check Digit Verification of cas no
The CAS Registry Mumber 651-97-8 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,5 and 1 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 651-97:
(5*6)+(4*5)+(3*1)+(2*9)+(1*7)=78
78 % 10 = 8
So 651-97-8 is a valid CAS Registry Number.
InChI:InChI=1/C8H4F2O4/c9-3-1-2-4(10)6(8(13)14)5(3)7(11)12/h1-2H,(H,11,12)(H,13,14)
651-97-8Relevant articles and documents
The Synthesis of 1,4-Difluoro-5,8-dihydroxyanthracene-9,10-dione and Ipso Substitutions of the Fluorides by Diamines Leading to 1,4-Bis--5,8-dihydroxyanthracene-9,10-diones
Krapcho, A. Paul,Getahun, Zelleka,Avery, Kenneth J.
, p. 2139 - 2146 (2007/10/02)
Two synthetic pathways to 1,4-difluoro-5,8-dihydroxyanthracene-9,10-dione (2) are described.The ipso substitution of the fluorides of 2 by diamines is a valuable preparative route to 1,4-bis-5,8-dihydroxyanthracene-9,10-diones related t
