1783-28-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1783-28-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,7,8 and 3 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1783-28:
(6*1)+(5*7)+(4*8)+(3*3)+(2*2)+(1*8)=94
94 % 10 = 4
So 1783-28-4 is a valid CAS Registry Number.
1783-28-4Relevant articles and documents
Method For Preparing Formamidines
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Paragraph 0109; 0110; 0114, (2015/11/09)
A method for preparing formamidines of formula (I) in a single step by reducing ureas of formula (II) using silanes of formula (III), according to reaction (II)+(III)+(I) is provided. The present invention also provides a method for preparing insecticides