50984-88-8 Usage
Uses
p-Xylenolphthalein is related to phenolphthalein which is used as a pH change indicator.
Check Digit Verification of cas no
The CAS Registry Mumber 50984-88-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,0,9,8 and 4 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 50984-88:
(7*5)+(6*0)+(5*9)+(4*8)+(3*4)+(2*8)+(1*8)=148
148 % 10 = 8
So 50984-88-8 is a valid CAS Registry Number.
InChI:InChI=1/C24H22O4/c1-13-11-21(25)15(3)9-19(13)24(20-10-16(4)22(26)12-14(20)2)18-8-6-5-7-17(18)23(27)28-24/h5-12,25-26H,1-4H3
50984-88-8Relevant articles and documents
A facile synthesis of phthalein indicator dyes
Sabnis, Ram W.
experimental part, p. 6261 - 6263 (2010/01/11)
The use of methanesulfonic acid offers a novel and highly efficient method for the synthesis of phthalein indicator dyes in excellent yields on an industrial scale.