1,2,4-Triazolo(3,4-a)phthalazine, 3-(3,5-dibromo-2-ethoxyphenyl)-6-(1- pyrrolidinyl)

Modify Date: 2026-08-02 17:10:53

1,2,4-Triazolo(3,4-a)phthalazine, 3-(3,5-dibromo-2-ethoxyphenyl)-6-(1- pyrrolidinyl) Structure
1,2,4-Triazolo(3,4-a)phthalazine, 3-(3,5-dibromo-2-ethoxyphenyl)-6-(1- pyrrolidinyl) structure
 Common Name 1,2,4-Triazolo(3,4-a)phthalazine, 3-(3,5-dibromo-2-ethoxyphenyl)-6-(1- pyrrolidinyl)
CAS Number 87540-17-8 Molecular Weight 517.21600
Density 1.75g/cm3 Boiling Point N/A
Molecular Formula C21H19Br2N5O Melting Point N/A
MSDS N/A Flash Point N/A

Summary: 3-(3,5-Dibromo-2-ethoxyphenyl)-6-pyrrolidin-1-yl-[1,2,4]triazolo[3,4-a]phthalazine, Chinese name: 1,2,4-Triazolo(3,4-a)phthalazine, 3-(3,5-dibromo-2-ethoxyphenyl)-6-(1-pyrrolidinyl)-, CAS number: 87540-17-8, molecular formula: C21H19Br2N5O, molecular weight: 517.21600. For research-use only, not for medical or clinical usage.

 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name 3-(3,5-dibromo-2-ethoxyphenyl)-6-pyrrolidin-1-yl-[1,2,4]triazolo[3,4-a]phthalazine
Synonym More Synonyms

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density 1.75g/cm3
Molecular Formula C21H19Br2N5O
Molecular Weight 517.21600
Exact Mass 514.99600
PSA 55.55000
LogP 5.53340
Index of Refraction 1.75
InChIKey QQDMAYFIAIIPLW-UHFFFAOYSA-N
SMILES CCOc1c(Br)cc(Br)cc1-c1nnc2c3ccccc3c(N3CCCC3)nn12

 Precursor & DownStream

This table lists upstream starting materials and downstream derivative products related to this chemical.

Precursor  5

DownStream  0

 Bioassay

View more

This table contains target information, in‑vitro & in‑vivo assay data for this compound.

Name: Lethal dose when given intraperitoneally in mice
Source: ChEMBL
Target: Mus musculus
External Id: CHEMBL741647
Name: Inhibition of [3H]diazepam binding to GABA-A central benzodiazepine receptor of rat b...
Source: ChEMBL
Target: Gamma-aminobutyric acid receptor subunit alpha-3
External Id: CHEMBL650466
Name: Dose that prevented tonic extensor seizures and death in 50% of the mice.(ip)
Source: ChEMBL
Target: Mus musculus
External Id: CHEMBL737815
Name: Minimal effective dose (MED, ip) that significantly increased the number of shocks (a...
Source: ChEMBL
Target: Rattus norvegicus
External Id: CHEMBL879120
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 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

3-(3,5-Dibromo-2-ethoxyphenyl)-6-(1-pyrrolidinyl)-1,2,4-triazolo(3,4-a)phthalazine
1,2,4-Triazolo(3,4-a)phthalazine,3-(3,5-dibromo-2-ethoxyphenyl)-6-(1-pyrrolidinyl)

  | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What are the upstream materials of 3-(3,5-dibromo-2-ethoxyphenyl)-6-pyrrolidin-1-yl-[1,2,4]triazolo[3,4-a]phthalazine?
A: Related upstream materials(CAS) of 3-(3,5-dibromo-2-ethoxyphenyl)-6-pyrrolidin-1-yl-[1,2,4]triazolo[3,4-a]phthalazine: 123-75-1;113628-57-2;51935-42-3;61657-67-8;87539-62-6.
Q: What English synonyms does 3-(3,5-dibromo-2-ethoxyphenyl)-6-pyrrolidin-1-yl-[1,2,4]triazolo[3,4-a]phthalazine have?
A: English synonyms of 3-(3,5-dibromo-2-ethoxyphenyl)-6-pyrrolidin-1-yl-[1,2,4]triazolo[3,4-a]phthalazine: 3-(3,5-Dibromo-2-ethoxyphenyl)-6-(1-pyrrolidinyl)-1,2,4-triazolo(3,4-a)phthalazine, 1,2,4-Triazolo(3,4-a)phthalazine,3-(3,5-dibromo-2-ethoxyphenyl)-6-(1-pyrrolidinyl).
Q: What is the English name of 3-(3,5-dibromo-2-ethoxyphenyl)-6-pyrrolidin-1-yl-[1,2,4]triazolo[3,4-a]phthalazine?
A: The English name of 3-(3,5-dibromo-2-ethoxyphenyl)-6-pyrrolidin-1-yl-[1,2,4]triazolo[3,4-a]phthalazine is 3-(3,5-dibromo-2-ethoxyphenyl)-6-pyrrolidin-1-yl-[1,2,4]triazolo[3,4-a]phthalazine.
Q: What is the LogP of 3-(3,5-dibromo-2-ethoxyphenyl)-6-pyrrolidin-1-yl-[1,2,4]triazolo[3,4-a]phthalazine?
A: LogP of 3-(3,5-dibromo-2-ethoxyphenyl)-6-pyrrolidin-1-yl-[1,2,4]triazolo[3,4-a]phthalazine is 5.53340.
Q: What is the Chinese name of 87540-17-8?
A: Chinese name of 87540-17-8 is 87540-17-8.
Q: What is the polar surface area (PSA) of 3-(3,5-dibromo-2-ethoxyphenyl)-6-pyrrolidin-1-yl-[1,2,4]triazolo[3,4-a]phthalazine?
A: Polar surface area (PSA) of 3-(3,5-dibromo-2-ethoxyphenyl)-6-pyrrolidin-1-yl-[1,2,4]triazolo[3,4-a]phthalazine is 55.55000.
Q: What is the CAS number of 3-(3,5-dibromo-2-ethoxyphenyl)-6-pyrrolidin-1-yl-[1,2,4]triazolo[3,4-a]phthalazine?
A: CAS number of 3-(3,5-dibromo-2-ethoxyphenyl)-6-pyrrolidin-1-yl-[1,2,4]triazolo[3,4-a]phthalazine is 87540-17-8.
Q: What is the molecular weight of 3-(3,5-dibromo-2-ethoxyphenyl)-6-pyrrolidin-1-yl-[1,2,4]triazolo[3,4-a]phthalazine?
A: Molecular weight of 3-(3,5-dibromo-2-ethoxyphenyl)-6-pyrrolidin-1-yl-[1,2,4]triazolo[3,4-a]phthalazine is 517.21600.
Q: What is the SMILES notation of 3-(3,5-dibromo-2-ethoxyphenyl)-6-pyrrolidin-1-yl-[1,2,4]triazolo[3,4-a]phthalazine?
A: SMILES notation of 3-(3,5-dibromo-2-ethoxyphenyl)-6-pyrrolidin-1-yl-[1,2,4]triazolo[3,4-a]phthalazine is CCOc1c(Br)cc(Br)cc1-c1nnc2c3ccccc3c(N3CCCC3)nn12.
Q: What is the InChIKey of 3-(3,5-dibromo-2-ethoxyphenyl)-6-pyrrolidin-1-yl-[1,2,4]triazolo[3,4-a]phthalazine?
A: InChIKey of 3-(3,5-dibromo-2-ethoxyphenyl)-6-pyrrolidin-1-yl-[1,2,4]triazolo[3,4-a]phthalazine is QQDMAYFIAIIPLW-UHFFFAOYSA-N.

 factory

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Dayang Chem (Hangzhou) Co., Ltd.
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Chemsrc provides CAS#:87540-17-8 MSDS, density, melting point, boiling point, structure, etc. Its name is 1,2,4-Triazolo(3,4-a)phthalazine, 3-(3,5-dibromo-2-ethoxyphenyl)-6-(1- pyrrolidinyl)>> amp version: 1,2,4-Triazolo(3,4-a)phthalazine, 3-(3,5-dibromo-2-ethoxyphenyl)-6-(1- pyrrolidinyl)

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