Examples of 'represent a hydrogen' in a sentence
Meaning of "represent a hydrogen"
represent a hydrogen ~ involves symbolizing or standing for the chemical element hydrogen in a specific context
How to use "represent a hydrogen" in a sentence
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represent a hydrogen
Where the dots represent a hydrogen bond.
Represent a hydrogen or halogen atom or an alkyl or haloalkyl group ;.
Can in particular represent a hydrogen atom.
And R4 represent a hydrogen or a methyl group ; or a pharmaceutically acceptable salt thereof.
Variables Rc and Rd each independently represent a hydrogen atom or a monovalent hydrocarbon group.
May represent a hydrogen atom or an alkyl group identical or different to R 2.
In particular both R represent a hydrogen atom.
Z may represent a hydrogen atom or a cation.
In this case, the others generally represent a hydrogen atom.
M can often represent a hydrogen atom or an alkali metal, ammonium or magnesium ion.
And R2 which are identical or different represent a hydrogen atom or a methyl group ;.
R 2 can also represent a hydrogen atom, which corresponds to the presence of a carboxylic group.
And R4 may be the same or different and represent a hydrogen atom or a lower alkyl group ;.
And R3 represent a hydrogen atom or lower alkyl.
More particularly, X can represent a hydrogen atom.
See also
And R 7 represent a hydrogen atom or a hydroxyl or alkanoyloxyl group.
And R 9 independently of each other represent a hydrogen atom or an alkyl group ; and.
The invention relates especially to the products in which R4 and R5 each represent a hydrogen atom.
Ra and Rb can each represent a hydrogen atom or an alkyl group.
Represent a hydrogen atom, a halogen atom or a methyl group ;.
Can in addition represent a hydrogen atom ;.
R ' 4 represent a hydrogen atom or an alkyloxycarbonyl, hydroxymethyl, alkanoyloxymethyl or acetamido radical ;.
And R3 preferably represent a hydrogen atom or methyl.
Also possibly forming the Pro residue, and and R 5 represent a hydrogen atom ;.
Will particularly represent a hydrogen atom or an NO 2 group.
However, it is most preferred that R ⁴ should represent a hydrogen atom.
And R12 are the same and represent a hydrogen atom or taken together form an oxygen atom.
Radical phthalocyanine crystals according to claim 1, characterized in that the R1 to R16 represent a hydrogen atom.
And R 6 preferably each represent a hydrogen or halogen atom.
May represent a hydrogen atom, a methyl group, or an acetyl group ;.
And R 2 can not simultaneously represent a hydrogen atom.
And R8 each represent a hydrogen atom or a lower alkyl group.
And R2, which may be identical or different, represent a hydrogen atom or a methyl group ;.
To represent a hydrogen atom ;.
And R5 preferably represent a hydrogen atom.
Ar ³ may represent a hydrogen atom or a non-substituted or substituted phenyl group ;.
Further for example, V can represent a hydrogen atom or an NH group.
And R4 represent a hydrogen or a methyl group ; or an acid-addition salt thereof.
Ra 1 to Ra n are the same or different, and represent a hydrogen atom, or a methyl radical ;.
R ′ and R ″ each represent a hydrogen atom, a halogen atom or a methyl group.
X and Y, which may be identical or different, represent a hydrogen atom or a methyl radical ;.
And R2 represent a hydrogen atom or a methyl group ;.
R9a and R9b also preferably represent a hydrogen atom or benzyl.
And R3 represent a hydrogen atom or a lower alkyl radical ;.
In the remaining cases, when R4 does not represent a hydrogen atom, ketones are obtained.
And R 2 represent a hydrogen atom or a methyl radical ;.
R5 and R6 are the same or different, and represent a hydrogen atom or a lower alkyl group.
And R4 represent a hydrogen atom or a lower alkyl group ;.
R3a and R3b are also preferable to represent a hydrogen atom and benzoyl group.
A process according to Claim 1, characterised in that both of the symbols R1 and R2 represent a hydrogen atom.
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