Exact(2)
To assure that the test substance sample is homogeneous it may be necessary to gently warm up the sample under shaking before an aliquot is removed for C-analysis or addition to the degradation test.
In this case, the drug substance sample was first analyzed using LC MSn through which the unknown species was found to be a valeryl-containing, isomeric impurity of the active pharmaceutical ingredient (API), betamethasone 17-valerate, based on its molecular ion and major fragments.
Similar(58)
It consists of PubChem Compound (unique structures), PubChem BioAssay (assay results), and PubChem Substance (samples supplied by depositors).
Results from biological experiments performed on the substance samples are stored in the PubChem BioAssay database (accession: AID).
Because acetone is a highly volatile substance, samples should be kept in a closed container.
Isoelectric focusing studies demonstrated that all analyzed drug substance samples had the same main band mobility confirming the identity.
All drug substance samples analyzed by N-terminal Edman sequencing yielded the expected N-terminal sequence corresponding to the theoretical sequence of filgrastim (Met-Thr-Pro-Leu-Gly-Pro-Ala).
Slipped in between Mr. Adler's gently sung, surprisingly sticky hooks, his raps detail nights of endless parties, nameless women and copious substance intake (sample song titles: "Corona and Lime," "Mary Jane"), yet somehow connote warmth.
These results include computed Badapple scores, plus assay, substance and sample statistics for each scaffold.
The green substance on sample 6_1869_BNM was supposed to be a copper-based pigment [19].
Also, in these studies, when attempting to prove the occupational effect of a specific position or of exposure to a particular substance, the sample sizes have been unsatisfactory [ 2- 4].
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