128854-10-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128854-10-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,8,5 and 4 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 128854-10:
(8*1)+(7*2)+(6*8)+(5*8)+(4*5)+(3*4)+(2*1)+(1*0)=144
144 % 10 = 4
So 128854-10-4 is a valid CAS Registry Number.
InChI:InChI=1/C10H12N4/c11-9-6-3-1-2-4-8(6)13-10-7(9)5-12-14-10/h5H,1-4H2,(H3,11,12,13,14)
128854-10-4Relevant articles and documents
HETEROCYCLIC SYNTHESIS FROM 3-AMINO-4-CYANOPYRAZOLE
Deeb, Ali,El-Mobayed, Medhat,Essawy, Abdel Naby,El-Hamid, Adel Abd,El-Hamid, Atef Mohamid Abd
, p. 728 - 733 (2007/10/02)
3-Amino-4-cyanopyrazole I reacts with hydroxylamine and with hydrazine to yield 1H,6H-3-aminopyrazolopyrazole (III and IV).Diazotized IV couples with 2-naphthol to give the arylazo derivative VI which cyclizes to 9H-naphtholpyrazolo3',4' :