The mass spectra showed the molecular ion peak at m/z (323) which is in agreement with its molecular formula
([C.sub.17][H.sub.13][N.sub.3]S[O.sub.2]), Scheme 8.
The molecular formula
was deduced by HR-EIMS showing molecular ion peak at m/z 314.11643 (calcd.
Each monograph has information on its names, category, molecular formula
and weight, appearance, solubilities, and other chemistry, and methods, including the analytical system components, major operating parameters, standard solution and sample preparations, correlation coefficient and linearity, coefficient of variation of the assay, limit of detection and quantification, and interference.
Folic acid's molecular formula
is C19, H19, N7, 06.
The numbers indicate the position in which the group is attached; the groups and molecular formula
Next, tocopherols do have stereoisomers, which have the same molecular formula
but differ configurationally based on the direction of the methyl groups at chiral carbon atoms, the isomers are designated 2R, 4'R, 8'R; 2S, 4'R, 8'R; 2RS, 4'R, 8'R; 2R, 4'RS, 8'RS; 2S, 4'RS, 8'RS and rotate polarized light to varying degrees.
For each entry the following date are provided when available: the DPIM code, hazard rating, entry name; CAS number; DOT identification number; molecular formula
; molecular `weight; line structural formula; a description of the material and physical properties; and synonyms.
Or could it be a cluster having the molecular formula
There is a "slim chance," he told SCIENCE NEWS, that the compound isolated from human plasma is not ouabain itself but an isomer -- a substance sharing the same molecular formula
but varying slightly in its three-dimensional structure.
It is a colorless, crystalline, water-soluble solid with a molecular formula
The high resolution mass spectrum (HRMS) indicated the molecular ion peak at m/z 398.11855 corresponding to the molecular formula
[ClickPress, Fri Apr 05 2019] "The general molecular formula
of polyethylene glycol is H(OCH2CH2)nOH, where n is the number of ethylene glycol units present in the polyethylene glycol polymer.