112809-57-1 Usage
General Description
4,4'-(Chloromethylene)-bis-benzonitrile, also known as DCDMH (1,3-Dichloro-5,5-dimethylhydantoin), is a chemical compound commonly used as a disinfectant and biocide. It is a white crystalline powder with a faint odor, and it is soluble in organic solvents but not in water. DCDMH is often used in water treatment, swimming pools, and industrial applications to control the growth of bacteria, algae, and fungi. It works by releasing chlorine when it comes into contact with water, effectively killing microorganisms. However, DCDMH can be corrosive and may cause irritation to the skin, eyes, and respiratory system, so proper safety precautions should be taken when handling this chemical.
Check Digit Verification of cas no
The CAS Registry Mumber 112809-57-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,2,8,0 and 9 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 112809-57:
(8*1)+(7*1)+(6*2)+(5*8)+(4*0)+(3*9)+(2*5)+(1*7)=111
111 % 10 = 1
So 112809-57-1 is a valid CAS Registry Number.
112809-57-1Relevant articles and documents
Letrozole production process
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Page/Page column 7, (2008/06/13)
Provided is a method for preparing letrozole, which includes reacting an activated bis-(4-cyanophenyl)-methane with a triazole to produce letrozole, and, optionally, purifying the letrozole. Also provided are highly pure letrozole, and a method of purifying letrozole, which method includes precipitating letrozole, e.g., by selective precipitation from a reaction mixture and/or by subjecting the letrozole to one or more crystallizations.
