You are using an unsupported browser. Please upgrade your browser to a newer version to get the best experience on Human Metabolome Database.
Record Information
StatusDetected and Quantified
Creation Date2006-05-22 14:17:40 UTC
Update Date2019-07-23 05:45:22 UTC
Secondary Accession Numbers
  • HMDB0060288
  • HMDB02189
  • HMDB60288
Metabolite Identification
Common NameN8-Acetylspermidine
DescriptionN8-Acetylspermidine is a polyamine. The polyamines, found in virtually all living organisms, are a ubiquitous group of compounds that appear to play a vital role in many cellular processes involving nucleic acids including cell growth and differentiation. Acetylation on the terminal nitrogen adjacent to the 4-carbon chain produces N8-acetylspermidine. This reaction is catalyzed by spermidine N8-acetyltransferase and does not result in the conversion of spermidine to putrescine. Instead, the product undergoes deacetylation. This acetyltransferase appears to be associated with chromatin in the cell nucleus and has been reported to be the same as (or related to) the enzyme(s) responsible for histone acetylation. N8-Acetylspermidine does not accumulate in tissues but rather appears to be rapidly deacetylated back to spermidine by a relatively specific cytosolic deacetylase, N8-acetylspermidine deacetylase. The function of this N8-acetylation/deacetylation pathway in cellular processes is not understood clearly, but several observations have suggested a role in cell growth and differentiation (PMID: 12093478 ).
N(8)-Acetylspermidine dihydrochlorideHMDB
Chemical FormulaC9H21N3O
Average Molecular Weight187.2825
Monoisotopic Molecular Weight187.168462309
IUPAC NameN-{4-[(3-aminopropyl)amino]butyl}acetamide
Traditional NameN8-acetylspermidine
CAS Registry Number13431-24-8
InChI Identifier
Chemical Taxonomy
Description belongs to the class of organic compounds known as carboximidic acids. These are organic acids with the general formula RC(=N)-OH (R=H, organic group).
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboximidic acids and derivatives
Sub ClassCarboximidic acids
Direct ParentCarboximidic acids
Alternative Parents
  • Organic 1,3-dipolar compound
  • Propargyl-type 1,3-dipolar organic compound
  • Secondary amine
  • Secondary aliphatic amine
  • Carboximidic acid
  • Organic nitrogen compound
  • Organic oxygen compound
  • Organopnictogen compound
  • Hydrocarbon derivative
  • Primary amine
  • Organooxygen compound
  • Organonitrogen compound
  • Primary aliphatic amine
  • Amine
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Physiological effect

Health effect:


Route of exposure:

Biological location:


Physical Properties
Experimental Properties
Melting Point202 - 203 °CNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
Water Solubility4.4 g/LALOGPS
pKa (Strongest Acidic)16.53ChemAxon
pKa (Strongest Basic)10.29ChemAxon
Physiological Charge2ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area67.15 ŲChemAxon
Rotatable Bond Count8ChemAxon
Refractivity54.41 m³·mol⁻¹ChemAxon
Polarizability23.1 ųChemAxon
Number of Rings0ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectrum TypeDescriptionSplash KeyView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-001l-9200000000-7350029bbf7fca576698JSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , positivesplash10-000i-0900000000-d04fb233b228bfc46b79JSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , positivesplash10-01w0-0900000000-e68fd1aa92642ae4208dJSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , positivesplash10-03k9-7900000000-287b3decd26c7daeb830JSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , positivesplash10-0089-9100000000-e42a1f8955afadd5f50dJSpectraViewer | MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , positivesplash10-0089-9000000000-b18801afe8921946e40fJSpectraViewer | MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-009j-1900000000-ec737abcda867c6557b2JSpectraViewer | MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-004j-6900000000-c57d66a60207b42d5604JSpectraViewer | MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0a4l-9100000000-5e4ff8c1235fb203f05fJSpectraViewer | MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-000i-1900000000-ed4e22e75d7e4ab076e2JSpectraViewer | MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-052o-5900000000-f486a2117b1dd060f58eJSpectraViewer | MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-052f-9000000000-dd7c2661d7b6091c7766JSpectraViewer | MoNA
Biological Properties
Cellular LocationsNot Available
Biospecimen Locations
  • Blood
  • Saliva
  • Urine
Tissue LocationsNot Available
Normal Concentrations
BloodDetected and Quantified0.05 +/- 0.014 uMAdult (>18 years old)FemaleNormal details
SalivaDetected and Quantified0.0437 +/- 0.129 uMAdult (>18 years old)Male
    • Sugimoto et al. (...
SalivaDetected and Quantified0.136 +/- 0.190 uMAdult (>18 years old)Female
    • Sugimoto et al. (...
SalivaDetected and Quantified0.150 +/- 0.0787 uMAdult (>18 years old)Female
    • Sugimoto et al. (...
SalivaDetected and Quantified0.178 +/- 0.156 uMAdult (>18 years old)Female
    • Sugimoto et al. (...
UrineDetected and Quantified1.04 +/- 0.3 umol/mmol creatinineAdult (>18 years old)FemaleNormal details
UrineDetected and Quantified0.30 (0.15-0.65) umol/mmol creatinineAdult (>18 years old)BothNormal details
UrineDetected but not Quantified Adult (>18 years old)BothNormal details
UrineDetected and Quantified0.271 +/- 0.187 umol/mmol creatinineAdult (>18 years old)BothNot Available details
UrineDetected but not Quantified Adult (>18 years old)BothNormal details
UrineDetected and Quantified0.22 +/- 0.02 umol/mmol creatinineAdult (>18 years old)BothNormal details
Abnormal Concentrations
BloodDetected and Quantified0.063 +/- 0.03 uMAdult (>18 years old)FemaleBreast cancer details
UrineDetected and Quantified0.2 +/- 0.24 umol/mmol creatinineAdult (>18 years old)FemaleBreast cancer details
UrineDetected but not Quantified Adult (>18 years old)BothLeukemia details
UrineDetected and Quantified0.394 +/- 0.156 umol/mmol creatinineAdult (>18 years old)BothLeukemia details
UrineDetected and Quantified0.88 +/- 0.14 umol/mmol creatinineAdult (>18 years old)BothPancreatic cancer details
Associated Disorders and Diseases
Disease References
Perillyl alcohol administration for cancer treatment
  1. Byun JA, Lee SH, Jung BH, Choi MH, Moon MH, Chung BC: Analysis of polyamines as carbamoyl derivatives in urine and serum by liquid chromatography-tandem mass spectrometry. Biomed Chromatogr. 2008 Jan;22(1):73-80. [PubMed:17668437 ]
Thyroid cancer
  1. Loser C, Folsch UR, Paprotny C, Creutzfeldt W: Polyamine concentrations in pancreatic tissue, serum, and urine of patients with pancreatic cancer. Pancreas. 1990 Mar;5(2):119-27. [PubMed:2315288 ]
  1. Lee SH, Suh JW, Chung BC, Kim SO: Polyamine profiles in the urine of patients with leukemia. Cancer Lett. 1998 Jan 9;122(1-2):1-8. [PubMed:9464484 ]
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDFDB022894
KNApSAcK IDNot Available
Chemspider ID110264
KEGG Compound IDC01029
BioCyc IDCPD-3462
BiGG IDNot Available
Wikipedia LinkNot Available
PubChem Compound123689
PDB IDNot Available
ChEBI ID27911
Food Biomarker OntologyNot Available
VMH IDNot Available
Synthesis ReferenceTabor, Herbert; Tabor, Celia W.; De Meis, Leopold. Chemical synthesis of N-acetyl-1,4-diaminobutane, N1-acetylspermidine, and N8-acetylspermidine. Methods Enzymol. (1971), 17(Pt. B), 829-33.
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Hrushesky WJ, Merdink J, Abdel-Monem MM: Circadian rhythmicity of polyamine urinary excretion. Cancer Res. 1983 Aug;43(8):3944-7. [PubMed:6861156 ]
  2. Seiler N, Graham A, Bartholeyns J: Enhanced urinary excretion of N1-acetylspermidine and the presence of tumors. Cancer Res. 1981 Apr;41(4):1572-3. [PubMed:6897929 ]
  3. Abdel-Monem MM, Merdink JL, Theologides A: Urinary excretion of monoacetyl polyamines in patients with non-Hodgkin's lymphoma. Cancer Res. 1982 May;42(5):2097-8. [PubMed:7066912 ]
  4. Inoue H, Fukunaga K, Munemura S, Tsuruta Y: Simultaneous determination of free and N-acetylated polyamines in urine by semimicro high-performance liquid chromatography using 4-(5,6-dimethoxy-2-phthalimidinyl)-2-methoxyphenylsulfonyl chloride as a fluorescent labeling reagent. Anal Biochem. 2005 Apr 15;339(2):191-7. [PubMed:15797558 ]
  5. Thiele I, Swainston N, Fleming RM, Hoppe A, Sahoo S, Aurich MK, Haraldsdottir H, Mo ML, Rolfsson O, Stobbe MD, Thorleifsson SG, Agren R, Bolling C, Bordel S, Chavali AK, Dobson P, Dunn WB, Endler L, Hala D, Hucka M, Hull D, Jameson D, Jamshidi N, Jonsson JJ, Juty N, Keating S, Nookaew I, Le Novere N, Malys N, Mazein A, Papin JA, Price ND, Selkov E Sr, Sigurdsson MI, Simeonidis E, Sonnenschein N, Smallbone K, Sorokin A, van Beek JH, Weichart D, Goryanin I, Nielsen J, Westerhoff HV, Kell DB, Mendes P, Palsson BO: A community-driven global reconstruction of human metabolism. Nat Biotechnol. 2013 May;31(5):419-25. doi: 10.1038/nbt.2488. Epub 2013 Mar 3. [PubMed:23455439 ]
  6. Mudumba S, Menezes A, Fries D, Blankenship J: Differentiation of PC12 cells induced by N8-acetylspermidine and by N8-acetylspermidine deacetylase inhibition. Biochem Pharmacol. 2002 Jun 1;63(11):2011-8. [PubMed:12093478 ]