99643-41-1 Usage
Structure
Spirocyclic heterocyclic compound with two perimidine rings fused at the 2 and 2' positions
Appearance
White to light yellow solid
Molecular weight
310.45 g/mol
Solubility
Insoluble in water, soluble in organic solvents such as methanol and ethanol
Uses
Organic synthesis, pharmaceutical research as a building block, potential applications in materials science and as a catalyst in chemical reactions.
Check Digit Verification of cas no
The CAS Registry Mumber 99643-41-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,6,4 and 3 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 99643-41:
(7*9)+(6*9)+(5*6)+(4*4)+(3*3)+(2*4)+(1*1)=181
181 % 10 = 1
So 99643-41-1 is a valid CAS Registry Number.
99643-41-1Relevant articles and documents
Electronic Structure of Heterospirenes-PE Spectroscopic Investigations
Gleiter, Rolf,Uschmann, Joachim
, p. 370 - 380 (1986)
The synthesis of the heterospirenes 1-9 is described and their He I photoelectron (PE) spectra are recorded.The assignment of the first PE bands is based on a comparison with fragment molecules and on molecular orbital calculations using semiempirical methods (PPP, MINDO/3). in the case of 1, 2, 4, and 5 strong spirointeraction has been elucidated.For 3 the analysis of the spectrum is hampered due to the strong overlap of the bands while for 6 the nonplanarity brings about a reduction of spirointeractions.For 7-9 the interaction between both fragments could not be detected.