| Record Information |
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| Version | 5.0 |
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| Status | Detected but not Quantified |
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| Creation Date | 2021-09-10 22:01:26 UTC |
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| Update Date | 2021-09-26 22:53:00 UTC |
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| HMDB ID | HMDB0244899 |
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| Secondary Accession Numbers | None |
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| Metabolite Identification |
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| Common Name | 1H-Pyrazolo[3,4-d]pyrimidin-4-amine |
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| Description | 1H-Pyrazolo[3,4-d]pyrimidin-4-amine, also known as 4-aminopyrazolo(3,4-D)pyrimidine or 4APP-4, belongs to the class of organic compounds known as pyrazolo[3,4-d]pyrimidines. These are aromatic heterocyclic compounds containing a pyrazolo[3,4-d]pyrimidine ring system, which consists of a pyrazole ring fused to but and not sharing a nitrogen atom with a pyrimidine ring. Based on a literature review a significant number of articles have been published on 1H-Pyrazolo[3,4-d]pyrimidin-4-amine. This compound has been identified in human blood as reported by (PMID: 31557052 ). 1h-pyrazolo[3,4-d]pyrimidin-4-amine is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically 1H-Pyrazolo[3,4-d]pyrimidin-4-amine is part of the human exposome. The exposome can be defined as the collection of all the exposures of an individual in a lifetime and how those exposures relate to health. An individual's exposure begins before birth and includes insults from environmental and occupational sources. |
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| Structure | InChI=1S/C5H5N5/c6-4-3-1-9-10-5(3)8-2-7-4/h1-2H,(H3,6,7,8,9,10) |
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| Synonyms | | Value | Source |
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| 4-Aminopyrazolo(3,4-D)pyrimidine | HMDB | | 4APP-4 | HMDB | | Aminopurinol | HMDB |
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| Chemical Formula | C5H5N5 |
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| Average Molecular Weight | 135.13 |
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| Monoisotopic Molecular Weight | 135.054495181 |
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| IUPAC Name | 1H-pyrazolo[3,4-d]pyrimidin-4-amine |
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| Traditional Name | 1H-pyrazolo[3,4-d]pyrimidin-4-amine |
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| CAS Registry Number | Not Available |
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| SMILES | NC1=NC=NC2=C1C=NN2 |
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| InChI Identifier | InChI=1S/C5H5N5/c6-4-3-1-9-10-5(3)8-2-7-4/h1-2H,(H3,6,7,8,9,10) |
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| InChI Key | LHCPRYRLDOSKHK-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as pyrazolo[3,4-d]pyrimidines. These are aromatic heterocyclic compounds containing a pyrazolo[3,4-d]pyrimidine ring system, which consists of a pyrazole ring fused to but and not sharing a nitrogen atom with a pyrimidine ring. |
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| Kingdom | Organic compounds |
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| Super Class | Organoheterocyclic compounds |
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| Class | Pyrazolopyrimidines |
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| Sub Class | Pyrazolo[3,4-d]pyrimidines |
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| Direct Parent | Pyrazolo[3,4-d]pyrimidines |
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| Alternative Parents | |
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| Substituents | - Pyrazolo[3,4-d]pyrimidine
- Aminopyrimidine
- Imidolactam
- Pyrimidine
- Heteroaromatic compound
- Pyrazole
- Azole
- Azacycle
- Organic nitrogen compound
- Organopnictogen compound
- Hydrocarbon derivative
- Primary amine
- Organonitrogen compound
- Amine
- Aromatic heteropolycyclic compound
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| Molecular Framework | Aromatic heteropolycyclic compounds |
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| External Descriptors | Not Available |
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| Ontology |
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| Physiological effect | Not Available |
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| Disposition | |
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| Process | Not Available |
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| Role | Not Available |
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| Physical Properties |
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| State | Not Available |
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| Experimental Molecular Properties | | Property | Value | Reference |
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| Melting Point | Not Available | Not Available | | Boiling Point | Not Available | Not Available | | Water Solubility | Not Available | Not Available | | LogP | Not Available | Not Available |
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| Experimental Chromatographic Properties | Not Available |
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| Predicted Molecular Properties | |
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| Predicted Chromatographic Properties | Predicted Collision Cross SectionsPredicted Retention Times Underivatized| Chromatographic Method | Retention Time | Reference |
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| Predicted by Siyang on May 30, 2022 | 7.9768 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 3.75 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 459.6 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 294.7 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 58.4 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 199.5 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 62.9 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 270.1 seconds | 40023050 | | BfG_NTS_RP1 =Agilent Zorbax Eclipse Plus C18 (2.1 mm x 150 mm, 3.5 um) with Water:ACN and 0.1% Formic Acid | 235.3 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 673.2 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 524.3 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 33.9 seconds | 40023050 | | UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid | 594.6 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 187.6 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 200.6 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 581.0 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 308.6 seconds | 40023050 | | Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water | 133.1 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| 1H-Pyrazolo[3,4-d]pyrimidin-4-amine,1TMS,isomer #1 | C[Si](C)(C)NC1=NC=NC2=C1C=N[NH]2 | 1902.4 | Semi standard non polar | 33892256 | | 1H-Pyrazolo[3,4-d]pyrimidin-4-amine,1TMS,isomer #1 | C[Si](C)(C)NC1=NC=NC2=C1C=N[NH]2 | 1817.0 | Standard non polar | 33892256 | | 1H-Pyrazolo[3,4-d]pyrimidin-4-amine,1TMS,isomer #1 | C[Si](C)(C)NC1=NC=NC2=C1C=N[NH]2 | 2785.1 | Standard polar | 33892256 | | 1H-Pyrazolo[3,4-d]pyrimidin-4-amine,1TMS,isomer #2 | C[Si](C)(C)N1N=CC2=C(N)N=CN=C21 | 1693.8 | Semi standard non polar | 33892256 | | 1H-Pyrazolo[3,4-d]pyrimidin-4-amine,1TMS,isomer #2 | C[Si](C)(C)N1N=CC2=C(N)N=CN=C21 | 1673.7 | Standard non polar | 33892256 | | 1H-Pyrazolo[3,4-d]pyrimidin-4-amine,1TMS,isomer #2 | C[Si](C)(C)N1N=CC2=C(N)N=CN=C21 | 2763.1 | Standard polar | 33892256 | | 1H-Pyrazolo[3,4-d]pyrimidin-4-amine,2TMS,isomer #1 | C[Si](C)(C)N(C1=NC=NC2=C1C=N[NH]2)[Si](C)(C)C | 1809.4 | Semi standard non polar | 33892256 | | 1H-Pyrazolo[3,4-d]pyrimidin-4-amine,2TMS,isomer #1 | C[Si](C)(C)N(C1=NC=NC2=C1C=N[NH]2)[Si](C)(C)C | 1882.6 | Standard non polar | 33892256 | | 1H-Pyrazolo[3,4-d]pyrimidin-4-amine,2TMS,isomer #1 | C[Si](C)(C)N(C1=NC=NC2=C1C=N[NH]2)[Si](C)(C)C | 2549.8 | Standard polar | 33892256 | | 1H-Pyrazolo[3,4-d]pyrimidin-4-amine,2TMS,isomer #2 | C[Si](C)(C)NC1=NC=NC2=C1C=NN2[Si](C)(C)C | 1811.0 | Semi standard non polar | 33892256 | | 1H-Pyrazolo[3,4-d]pyrimidin-4-amine,2TMS,isomer #2 | C[Si](C)(C)NC1=NC=NC2=C1C=NN2[Si](C)(C)C | 1769.8 | Standard non polar | 33892256 | | 1H-Pyrazolo[3,4-d]pyrimidin-4-amine,2TMS,isomer #2 | C[Si](C)(C)NC1=NC=NC2=C1C=NN2[Si](C)(C)C | 2594.3 | Standard polar | 33892256 | | 1H-Pyrazolo[3,4-d]pyrimidin-4-amine,3TMS,isomer #1 | C[Si](C)(C)N(C1=NC=NC2=C1C=NN2[Si](C)(C)C)[Si](C)(C)C | 1847.8 | Semi standard non polar | 33892256 | | 1H-Pyrazolo[3,4-d]pyrimidin-4-amine,3TMS,isomer #1 | C[Si](C)(C)N(C1=NC=NC2=C1C=NN2[Si](C)(C)C)[Si](C)(C)C | 1855.1 | Standard non polar | 33892256 | | 1H-Pyrazolo[3,4-d]pyrimidin-4-amine,3TMS,isomer #1 | C[Si](C)(C)N(C1=NC=NC2=C1C=NN2[Si](C)(C)C)[Si](C)(C)C | 2292.3 | Standard polar | 33892256 | | 1H-Pyrazolo[3,4-d]pyrimidin-4-amine,1TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)NC1=NC=NC2=C1C=N[NH]2 | 2126.4 | Semi standard non polar | 33892256 | | 1H-Pyrazolo[3,4-d]pyrimidin-4-amine,1TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)NC1=NC=NC2=C1C=N[NH]2 | 1977.4 | Standard non polar | 33892256 | | 1H-Pyrazolo[3,4-d]pyrimidin-4-amine,1TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)NC1=NC=NC2=C1C=N[NH]2 | 2866.7 | Standard polar | 33892256 | | 1H-Pyrazolo[3,4-d]pyrimidin-4-amine,1TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)N1N=CC2=C(N)N=CN=C21 | 1995.3 | Semi standard non polar | 33892256 | | 1H-Pyrazolo[3,4-d]pyrimidin-4-amine,1TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)N1N=CC2=C(N)N=CN=C21 | 1858.4 | Standard non polar | 33892256 | | 1H-Pyrazolo[3,4-d]pyrimidin-4-amine,1TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)N1N=CC2=C(N)N=CN=C21 | 2793.5 | Standard polar | 33892256 | | 1H-Pyrazolo[3,4-d]pyrimidin-4-amine,2TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)N(C1=NC=NC2=C1C=N[NH]2)[Si](C)(C)C(C)(C)C | 2239.0 | Semi standard non polar | 33892256 | | 1H-Pyrazolo[3,4-d]pyrimidin-4-amine,2TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)N(C1=NC=NC2=C1C=N[NH]2)[Si](C)(C)C(C)(C)C | 2276.2 | Standard non polar | 33892256 | | 1H-Pyrazolo[3,4-d]pyrimidin-4-amine,2TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)N(C1=NC=NC2=C1C=N[NH]2)[Si](C)(C)C(C)(C)C | 2629.2 | Standard polar | 33892256 | | 1H-Pyrazolo[3,4-d]pyrimidin-4-amine,2TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)NC1=NC=NC2=C1C=NN2[Si](C)(C)C(C)(C)C | 2221.7 | Semi standard non polar | 33892256 | | 1H-Pyrazolo[3,4-d]pyrimidin-4-amine,2TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)NC1=NC=NC2=C1C=NN2[Si](C)(C)C(C)(C)C | 2154.9 | Standard non polar | 33892256 | | 1H-Pyrazolo[3,4-d]pyrimidin-4-amine,2TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)NC1=NC=NC2=C1C=NN2[Si](C)(C)C(C)(C)C | 2618.5 | Standard polar | 33892256 | | 1H-Pyrazolo[3,4-d]pyrimidin-4-amine,3TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)N(C1=NC=NC2=C1C=NN2[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2384.5 | Semi standard non polar | 33892256 | | 1H-Pyrazolo[3,4-d]pyrimidin-4-amine,3TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)N(C1=NC=NC2=C1C=NN2[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2483.8 | Standard non polar | 33892256 | | 1H-Pyrazolo[3,4-d]pyrimidin-4-amine,3TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)N(C1=NC=NC2=C1C=NN2[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C | 2486.9 | Standard polar | 33892256 |
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