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477861-82-8

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477861-82-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 477861-82-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,7,7,8,6 and 1 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 477861-82:
(8*4)+(7*7)+(6*7)+(5*8)+(4*6)+(3*1)+(2*8)+(1*2)=208
208 % 10 = 8
So 477861-82-8 is a valid CAS Registry Number.

477861-82-8Downstream Products

477861-82-8Relevant articles and documents

One-pot synthesis of 4-aminoquinazolines by hexamethyldisilazane-mediated reaction of quinazolin-4(3h)-ones with amines

Shen, Zhen-Lu,He, Xiao-Fei,Hong, Yi-Ming,Hu, Xin-Quan,Mo, Wei-Min,Hu, Bao-Xiang,Sun, Nan

experimental part, p. 3644 - 3653 (2011/10/09)

Hexamethyldisilazane-mediated reaction of quinazolin-4(3H)-ones with primary amines led to facile formation of 4-aminoquinazolines through tandem silylation and substitution in a single pot. Excellent yields of the products (83-97%) and environmental friendliness (avoiding the use of chlorination reagents) are the advantages of this method. Copyright Taylor & Francis Group, LLC.

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