49805-23-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 49805-23-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,9,8,0 and 5 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 49805-23:
(7*4)+(6*9)+(5*8)+(4*0)+(3*5)+(2*2)+(1*3)=144
144 % 10 = 4
So 49805-23-4 is a valid CAS Registry Number.
49805-23-4Relevant academic research and scientific papers
Hydroxyethylsemicarbazides and -Semicarbazones
Bagrov,Efimov,Petrukhina,Kol'tsov
, p. 72 - 75 (2007/10/03)
In 2-propanol or dioxane, tolylene 2.4-diisocyanate, diphenylmethane 4,4′-diisocyanate, and hexamethylene diisocyanate react with hydroxyethylhydrazine via the secondary amino group to form hydroxyethylsemicarbazides. The condensation of these hydroxyethy
