89033-45-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89033-45-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,0,3 and 3 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 89033-45:
(7*8)+(6*9)+(5*0)+(4*3)+(3*3)+(2*4)+(1*5)=144
144 % 10 = 4
So 89033-45-4 is a valid CAS Registry Number.
InChI:InChI=1/C4H5N3O3/c5-2(8)1-3(9)7-4(10)6-1/h1H,(H2,5,8)(H2,6,7,9,10)
89033-45-4Relevant articles and documents
METHOD FOR PREPARING METHIONINE
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Page/Page column 16; 17, (2018/07/29)
The present invention relates to a method for preparing methionine or methionine salts. In particular, the invention describes the step of preparing 2-hydroxy-4-(methylthio)butyronitrile (MMP-CN) from 3-methylthiopropanal (MMP) and hydrogen cyanide (HCN) in the presence of ammonia by bringing a gaseous mixture comprising HCN and ammonia into contact with MMP.