Chemistry
Androstane
100%
Petroleum
60%
Biological Marker
60%
Wagner-Meerwein Rearrangement
60%
Recyclization
56%
Carbon Atom
31%
Reaction Yield
27%
Eschenmoser Reaction
22%
Relative Configuration
16%
Constitutional Isomer
16%
Oxidative Elimination Reaction
16%
Testosterone
15%
Stereoisomer
13%
Reduction
12%
Mixture
11%
Mass Spectrum
11%
X-Ray Crystallography
11%
Fragmentation
11%
Gas Chromatography
10%
Double Bond
10%
Gas Chromatography Mass Spectrometry (GCMS)
10%
Hydrogenation
9%
Alkene
9%
Hydrocarbon
9%
Compound Isomer
9%
Column Like Crystal
8%
Purity
6%
Physics & Astronomy
fossils
90%
biomarkers
89%
crude oil
80%
musculoskeletal system
78%
Oman
53%
carbon
44%
rings
19%
isomers
18%
products
18%
synthesis
13%
elution
13%
alkenes
12%
gas chromatography
12%
constitution
11%
crystallography
10%
alkanes
10%
hydrogenation
10%
mass spectra
9%
cleavage
9%
fragmentation
8%
oxidation
7%
shift
5%
configurations
5%
x rays
4%