89644-72-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89644-72-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,6,4 and 4 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 89644-72:
(7*8)+(6*9)+(5*6)+(4*4)+(3*4)+(2*7)+(1*2)=184
184 % 10 = 4
So 89644-72-4 is a valid CAS Registry Number.
89644-72-4Relevant academic research and scientific papers
Hydroquinone ether compounds
-
, (2008/06/13)
New hydroquinone ether compounds of formula I are described: STR1 wherein p is 1 or 2 and q is 0 or 1, provided that p+q is 1 or 2, R is a residue of formula II STR2 and Ro, Roo, R1, R2, R3, Q, n and k are as defined in the specification. The new compounds are useful e.g. as stabilizers in photographic material.
