80211-20-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 80211-20-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,2,1 and 1 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 80211-20:
(7*8)+(6*0)+(5*2)+(4*1)+(3*1)+(2*2)+(1*0)=77
77 % 10 = 7
So 80211-20-7 is a valid CAS Registry Number.
80211-20-7Relevant articles and documents
Oxidation hair dyes comprising bis-(2,4-diaminophenoxy)-alkanols as coupling components
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, (2008/06/13)
This invention is directed to bis-(2,4-diaminophenoxy)-alkanols and salts thereof and to compositions of the developer-coupler type for the dyeing of hair, consisting essentially of bis-(2,4-diaminophenoxy)-alkanols or salts thereof as coupling components
