1(2H)-Phthalazinone structure

1(2H)-Phthalazinone

TL;DR: 1(2H)-Phthalazinone (CAS 119-39-1) is a chemical compound with molecular formula C8H6N2O and molecular weight 146.05 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

2H-phthalazin-1-one

Also Known As: Phthalazone, Phthalazin-1(2H)-one, 1(2H)-PHTHALAZINONE, Phthalazinone, Phthalazinol

CAS: 119-39-1
Molecular Formula C8H6N2O
Molecular Weight 146.05 g/mol
LogP 0.8
Topological Polar Surface Area 41.5 Ų
Hydrogen Bond Donors 1
Hydrogen Bond Acceptors 2
Rotatable Bonds 0
Exact Mass 146.04802
Heavy Atoms 11
Complexity 200.0
Melting Point 361 to 183.9 °C
Boiling Point 337.2 °C at 760 mmHg
Solubility Insoluble (NTP, 1992)
Vapor Pressure 0.00000257 [mmHg]

Chemical Identifiers

CAS Number 119-39-1
SMILES C1=CC=C2C(=C1)C=NNC2=O
InChIKey IJAPPYDYQCXOEF-UHFFFAOYSA-N

Patent-Derived Application Labels

Derived from 18 IPC patent classification(s) across the SureChEMBL global patent database.

Agrochemicals (13 patents) Analytical Reagents (22 patents) Biotechnology (13 patents) Coatings & Adhesives (9 patents) Dyes & Pigments (46 patents) +13 more

Product Overview

1(2H)-Phthalazinone (CAS 119-39-1), with molecular formula C8H6N2O and molecular weight 146.05 g/mol. IUPAC: 2H-phthalazin-1-one.

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Safety Data Sheet (MSDS / SDS) View the Laboratory Chemical Safety Summary (LCSS) on PubChem — includes GHS classifications, hazard statements, first aid measures, and handling precautions.
View MSDS →

Chemical Property Profile of 1(2H)-Phthalazinone

XLogP
0.8
TPSA (Topological Polar Surface Area)
41.5
Hydrogen Bond Donors
1
Hydrogen Bond Acceptors
2
Rotatable Bonds
0
Heavy Atoms
11
Complexity
200.0
Exact Mass
146.04802
Monoisotopic Mass
146.04802
Data Source: Chemical property values are referenced from PubChem, the world's largest open chemistry database maintained by the National Center for Biotechnology Information (NCBI), U.S. National Library of Medicine.

Property Insights of 1(2H)-Phthalazinone

The XLogP value of 0.8 suggests moderate lipophilicity, balancing water solubility and membrane permeability for 1(2H)-Phthalazinone. With a topological polar surface area (TPSA) of 41.5 Ų, 1(2H)-Phthalazinone exhibits relatively low polarity, potentially indicating favorable cell membrane permeability. Following Lipinski's Rule of Five, 1(2H)-Phthalazinone has 1 hydrogen bond donor(s) and 2 hydrogen bond acceptor(s), all within the drug-like range, suggesting favorable oral bioavailability potential.

Frequently Asked Questions

What is the typical lead time for this product?
Lead time typically ranges from 3-7 business days for in-stock items. For larger quantities or custom orders, please contact us for specific lead times.
Can you provide samples for testing?
Yes, we offer sample quantities for quality testing. Please submit an inquiry with your requirements and we will arrange samples accordingly.
What documentation do you provide with the product?
We provide COA (Certificate of Analysis), MSDS (Material Safety Data Sheet), and technical data sheets with each shipment.
Do you ship internationally?
Yes, we ship to most countries worldwide. Shipping costs and delivery times vary by location. Please contact us for specific shipping information.

Frequently Asked Questions

What is the CAS number of 1(2H)-Phthalazinone?

The CAS number of 1(2H)-Phthalazinone is 119-39-1.

What is the molecular formula of 1(2H)-Phthalazinone?

The molecular formula of 1(2H)-Phthalazinone is C8H6N2O.

What is the molecular weight of 1(2H)-Phthalazinone?

The molecular weight of 1(2H)-Phthalazinone is 146.05 g/mol.

Where can I buy 1(2H)-Phthalazinone?

You can request a quote for 1(2H)-Phthalazinone directly from KEHONG BIO. Contact us or email info@kehongbio.com for pricing and availability.

Does KEHONG BIO offer custom synthesis for 1(2H)-Phthalazinone?

Yes, KEHONG BIO provides custom synthesis services for 1(2H)-Phthalazinone and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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