71784-20-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71784-20-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,7,8 and 4 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 71784-20:
(7*7)+(6*1)+(5*7)+(4*8)+(3*4)+(2*2)+(1*0)=138
138 % 10 = 8
So 71784-20-8 is a valid CAS Registry Number.
71784-20-8Relevant articles and documents
Surfactants From Sulfonation Of Aromatic Ethers
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Paragraph 0077; 0078, (2020/12/13)
The present disclosure relates to surfactants formed from sulfonation of aromatic ethers. The example surfactant composition may include a sulfonated aromatic ether. The sulfonated aromatic ether may include an aromatic ring with substituents comprising a
