1556-22-5 Usage
Derivative of cinnolinone
A modified version of the parent compound cinnolinone, which is a bicyclic heterocyclic compound.
Common use as intermediate
Frequently used in chemical reactions to form more complex molecules in the synthesis of pharmaceuticals, agrochemicals, and various organic compounds.
Applications in synthesis
Utilized in the production of antiviral and anticancer agents, as well as in the development of insecticides and herbicides.
Building block in pharmaceutical industry
Serves as a fundamental component in creating a wide range of medicines and therapeutic agents.
Versatile nature
The compound's ability to be used in various chemical reactions and processes makes it a valuable asset in organic synthesis.
Check Digit Verification of cas no
The CAS Registry Mumber 1556-22-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,5,5 and 6 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1556-22:
(6*1)+(5*5)+(4*5)+(3*6)+(2*2)+(1*2)=75
75 % 10 = 5
So 1556-22-5 is a valid CAS Registry Number.
1556-22-5Relevant articles and documents
On the tautomerism of cinnolin-4-ol, cinnoline-4-thiol, and cinnolin-4-amine
Holzer, Wolfgang,Eller, Gernot A.,Schoenberger, Simeon
, p. 77 - 86 (2008/09/20)
Detailed NMR spectroscopic investigations (1H, 13C, 15N) with cinnolin-4-ol (1) reveal this compound to exist exclusively in the cinnolin-4(1H)-one form in deuteriodimethyl sulfoxide solution. This finding is confirmed by comparison of the NMR spectroscopic data of 1 with those of the corresponding 'fixed' O-methyl and N-methyl derivatives, i.e. 4-methoxycinnoline (3) and 1-methylcinnolin-4(1H)-one (5). Similarly, cinnoline-4-thiol (4) is present in the thione form in deuteriodimethyl sulfoxide, whereas cinnolin-4-amine (7) exists in the amino form. In addition, in-depth analyses of the NMR spectra of some simple 4-substituted cinnolines are provided.
Central nervous system active compounds. IX. Cinnolinylisobenzofuranones [1-(3-phthalidyl)cinnolin-4(1H)-ones]
Marshall,Mooney,Prager,Ward
, p. 2619 - 2627 (2007/10/02)
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