4081-20-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4081-20-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,0,8 and 1 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 4081-20:
(6*4)+(5*0)+(4*8)+(3*1)+(2*2)+(1*0)=63
63 % 10 = 3
So 4081-20-3 is a valid CAS Registry Number.
4081-20-3Relevant articles and documents
Preparation method of bisphenol compound antioxidant 4,4,'-methylenebis(3-methyl-6-di-tert-butylphenol)
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Paragraph 0014-0019, (2017/08/29)
The invention discloses a preparation method of a bisphenol compound antioxidant 4,4,'-methylenebis(3-methyl-6-di-tert-butylphenol). The preparation method specifically comprises the following synthesis steps of using a sealed reaction kettle as a reactio
