This does not exist as prop means 3, and you cannot have a triple bond on the 3rd carbon to another carbon if it is not there. I'll link 2 methyl 3 butyne as it is hard to explain. However, I'm pretty sure under IUPAC, it should be named 3 methyl 1 butyne at that.
2-methyl-1-proponal
(2S,3R)-ethyl 3-methyl-3-phenyloxirane-2-carboxylate
Red 40 is disodium 6-hydroxy-5-((2-methoxy-5-methyl-4-sulfophenyl)azo)-2-naphthalenesulfonate with the chemical formula C18H14N2Na2O8S2.
Methyl-2-methyl butyrate is CH3-CH2-CH(CH3)-COOCH3, it may be prepared by reacting 2-methyl butyric acid with methanol in presence of sulphuric acid.
2-methyl-2-butene is the major product (85%), while 2-methyl-1-butene the minor (15%) in an E1 reaction.
The chemical formula of 2-methyl-2-butanol is C15H12O.
The 3 in front of the propyne means that the triple bond is between the 3rd and 4th carbon of the longest carbon chain in the molecule. However, you only have 3 carbons in a chain.
2 methyl 1 propanol
2-hexanone3-hexanone2-methyl-3-pentanone3-methyl-2-pentanone4-methyl-2-pentanone3,3-dimethyl-2-butanone
C4h10o
2-methyl-1-proponal
A structural formula diagram of 3-chloro-2-methyl-1-butanol would include HO with a line drawn from it. Attached to the line would be offshoots which represented the methyl and butanol.
The alcohols having the formula C4H10O are four 1-butanol , 2-butanol, 2-methyl-1-propanol and 2-methyl-2-propanol.
C5H12o
there are 2 pi bonds and 1 sigma bond in propyne (alkynes)
Looking at the structure, the methyl group is closer to the carboxylic acid group on2-methyl-3-nitrobenzoic acid, while the nitro group is closer to the carboxylic acid group on 3-methyl-2-nitrobenzoic acid.
A semi-structural formula for this molecule is CH3-(CH2)2-CH=C(CH3)-CH3.