What do the dots mean in HN.CO.CH3 connected to the second carbon of N- Acetylglucosamine? And what do the N...












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What do the dots mean in HN.CO.CH3 connected to the second carbon of N- Acetylglucosamine? And what do the N and acetyl indicate?










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    What is glucosamine? What is an acetyl? The acetyl is connected to the amine at the nitrogen atom, hence N-acetyl. These "dots" (they look more like blobs to me) are just a simple covalent bond. Why they look like blobs I have no idea.
    – Karl
    Jan 5 at 12:46








  • 3




    These don't look like dots to me, more like en-dashes used for denoting chemical bonds (e.g. $ce{HN-CO-CH3}$). Probably they were chosen short by the typography in order to fit an entire structure on the page. N- indicate the substituent on the nitrogen, and the task of finding what is acetyl is I leave to you:)
    – andselisk
    Jan 5 at 12:47








  • 3




    They look more like dashs to me, a dash is a common symbol for a single bond
    – Nuclear Chemist
    Jan 5 at 13:14
















1














enter image description here



What do the dots mean in HN.CO.CH3 connected to the second carbon of N- Acetylglucosamine? And what do the N and acetyl indicate?










share|improve this question







New contributor




Anas Al-ameen is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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  • 1




    What is glucosamine? What is an acetyl? The acetyl is connected to the amine at the nitrogen atom, hence N-acetyl. These "dots" (they look more like blobs to me) are just a simple covalent bond. Why they look like blobs I have no idea.
    – Karl
    Jan 5 at 12:46








  • 3




    These don't look like dots to me, more like en-dashes used for denoting chemical bonds (e.g. $ce{HN-CO-CH3}$). Probably they were chosen short by the typography in order to fit an entire structure on the page. N- indicate the substituent on the nitrogen, and the task of finding what is acetyl is I leave to you:)
    – andselisk
    Jan 5 at 12:47








  • 3




    They look more like dashs to me, a dash is a common symbol for a single bond
    – Nuclear Chemist
    Jan 5 at 13:14














1












1








1







enter image description here



What do the dots mean in HN.CO.CH3 connected to the second carbon of N- Acetylglucosamine? And what do the N and acetyl indicate?










share|improve this question







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Check out our Code of Conduct.











enter image description here



What do the dots mean in HN.CO.CH3 connected to the second carbon of N- Acetylglucosamine? And what do the N and acetyl indicate?







organic-chemistry biochemistry






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asked Jan 5 at 12:32









Anas Al-ameenAnas Al-ameen

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New contributor





Anas Al-ameen is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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  • 1




    What is glucosamine? What is an acetyl? The acetyl is connected to the amine at the nitrogen atom, hence N-acetyl. These "dots" (they look more like blobs to me) are just a simple covalent bond. Why they look like blobs I have no idea.
    – Karl
    Jan 5 at 12:46








  • 3




    These don't look like dots to me, more like en-dashes used for denoting chemical bonds (e.g. $ce{HN-CO-CH3}$). Probably they were chosen short by the typography in order to fit an entire structure on the page. N- indicate the substituent on the nitrogen, and the task of finding what is acetyl is I leave to you:)
    – andselisk
    Jan 5 at 12:47








  • 3




    They look more like dashs to me, a dash is a common symbol for a single bond
    – Nuclear Chemist
    Jan 5 at 13:14














  • 1




    What is glucosamine? What is an acetyl? The acetyl is connected to the amine at the nitrogen atom, hence N-acetyl. These "dots" (they look more like blobs to me) are just a simple covalent bond. Why they look like blobs I have no idea.
    – Karl
    Jan 5 at 12:46








  • 3




    These don't look like dots to me, more like en-dashes used for denoting chemical bonds (e.g. $ce{HN-CO-CH3}$). Probably they were chosen short by the typography in order to fit an entire structure on the page. N- indicate the substituent on the nitrogen, and the task of finding what is acetyl is I leave to you:)
    – andselisk
    Jan 5 at 12:47








  • 3




    They look more like dashs to me, a dash is a common symbol for a single bond
    – Nuclear Chemist
    Jan 5 at 13:14








1




1




What is glucosamine? What is an acetyl? The acetyl is connected to the amine at the nitrogen atom, hence N-acetyl. These "dots" (they look more like blobs to me) are just a simple covalent bond. Why they look like blobs I have no idea.
– Karl
Jan 5 at 12:46






What is glucosamine? What is an acetyl? The acetyl is connected to the amine at the nitrogen atom, hence N-acetyl. These "dots" (they look more like blobs to me) are just a simple covalent bond. Why they look like blobs I have no idea.
– Karl
Jan 5 at 12:46






3




3




These don't look like dots to me, more like en-dashes used for denoting chemical bonds (e.g. $ce{HN-CO-CH3}$). Probably they were chosen short by the typography in order to fit an entire structure on the page. N- indicate the substituent on the nitrogen, and the task of finding what is acetyl is I leave to you:)
– andselisk
Jan 5 at 12:47






These don't look like dots to me, more like en-dashes used for denoting chemical bonds (e.g. $ce{HN-CO-CH3}$). Probably they were chosen short by the typography in order to fit an entire structure on the page. N- indicate the substituent on the nitrogen, and the task of finding what is acetyl is I leave to you:)
– andselisk
Jan 5 at 12:47






3




3




They look more like dashs to me, a dash is a common symbol for a single bond
– Nuclear Chemist
Jan 5 at 13:14




They look more like dashs to me, a dash is a common symbol for a single bond
– Nuclear Chemist
Jan 5 at 13:14










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These are not dots. They actually are single bonds though I do not know why they are printed that way. As such, they should be represented by a half-long dash (called EN DASH in Unicode).



In the name N-acetylglucosamine, acetyl means that a hydrogen atom has been replaced an acetyl group (i.e. –CO–CH3) and that the replacement occurred on the nitrogen (aka "N") atom.



Overall, it means something like: "consider glucosamine but replace one hydrogen on the nitrogen atom by an acetyl group". This is the standard "substitutive naming" defined by the IUPAC.






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    1 Answer
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    6














    These are not dots. They actually are single bonds though I do not know why they are printed that way. As such, they should be represented by a half-long dash (called EN DASH in Unicode).



    In the name N-acetylglucosamine, acetyl means that a hydrogen atom has been replaced an acetyl group (i.e. –CO–CH3) and that the replacement occurred on the nitrogen (aka "N") atom.



    Overall, it means something like: "consider glucosamine but replace one hydrogen on the nitrogen atom by an acetyl group". This is the standard "substitutive naming" defined by the IUPAC.






    share|improve this answer


























      6














      These are not dots. They actually are single bonds though I do not know why they are printed that way. As such, they should be represented by a half-long dash (called EN DASH in Unicode).



      In the name N-acetylglucosamine, acetyl means that a hydrogen atom has been replaced an acetyl group (i.e. –CO–CH3) and that the replacement occurred on the nitrogen (aka "N") atom.



      Overall, it means something like: "consider glucosamine but replace one hydrogen on the nitrogen atom by an acetyl group". This is the standard "substitutive naming" defined by the IUPAC.






      share|improve this answer
























        6












        6








        6






        These are not dots. They actually are single bonds though I do not know why they are printed that way. As such, they should be represented by a half-long dash (called EN DASH in Unicode).



        In the name N-acetylglucosamine, acetyl means that a hydrogen atom has been replaced an acetyl group (i.e. –CO–CH3) and that the replacement occurred on the nitrogen (aka "N") atom.



        Overall, it means something like: "consider glucosamine but replace one hydrogen on the nitrogen atom by an acetyl group". This is the standard "substitutive naming" defined by the IUPAC.






        share|improve this answer












        These are not dots. They actually are single bonds though I do not know why they are printed that way. As such, they should be represented by a half-long dash (called EN DASH in Unicode).



        In the name N-acetylglucosamine, acetyl means that a hydrogen atom has been replaced an acetyl group (i.e. –CO–CH3) and that the replacement occurred on the nitrogen (aka "N") atom.



        Overall, it means something like: "consider glucosamine but replace one hydrogen on the nitrogen atom by an acetyl group". This is the standard "substitutive naming" defined by the IUPAC.







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Jan 5 at 12:50









        SteffXSteffX

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