5-(2-ETHOXYPHENYL)-1-METHYL-3-N-PROPYL-1,6-DIHYDRO-7H-PYRAZOLO[4,3-D]-7-PYRIMIDINONE

Product Name: 5-(2-ETHOXYPHENYL)-1-METHYL-3-N-PROPYL-1,6-DIHYDRO-7H-PYRAZOLO[4,3-D]-7-PYRIMIDINONE
CAS No.: 139756-21-1
Chemical Name: 5-(2-ETHOXYPHENYL)-1-METHYL-3-N-PROPYL-1,6-DIHYDRO-7H-PYRAZOLO[4,3-D]-7-PYRIMIDINONE
Synonyms: 5-(2-Ethoxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one;5-(2-Ethoxyphenyl);5-(2-ethoxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7h-pyrazolo[4,3-d]-7-pyrimidinone;DPX 84;UK 088800;PDE5-IN-7;Sildenafil pyrimidinone;UK 088800, 10 mM in DMSO;Sildenafil LactaM IMpurity;Sildenafil citrate impurity L
CBNumber: CB3155530
Molecular Formula: C17H20N4O2
Formula Weight: 312.37
MOL File: 139756-21-1.mol

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5-(2-ETHOXYPHENYL)-1-METHYL-3-N-PROPYL-1,6-DIHYDRO-7H-PYRAZOLO[4,3-D]-7-PYRIMIDINONE Property

Melting point:: 141-145 °C(lit.)
Density: 1.26±0.1 g/cm3(Predicted)
storage temp.: Sealed in dry,2-8°C
solubility: DMSO (Slightly), Methanol (Slightly)
form: Solid
pka: 10.27±0.20(Predicted)
color: White to Pale Beige
InChI: InChI=1S/C17H20N4O2/c1-4-8-12-14-15(21(3)20-12)17(22)19-16(18-14)11-9-6-7-10-13(11)23-5-2/h6-7,9-10H,4-5,8H2,1-3H3,(H,18,19,22)
InChIKey: MXQUEDUMKWBYHI-UHFFFAOYSA-N
SMILES: C1(C2=CC=CC=C2OCC)NC(=O)C2N(C)N=C(CCC)C=2N=1
CAS DataBase Reference: 139756-21-1

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Safety

Hazard Codes: Xi
Risk Statements: 36/37/38
Safety Statements: 26-36
WGK Germany: 3
HS Code: 2933998090
Storage Class: 11 - Combustible Solids
Hazard Classifications: Eye Irrit. 2
Skin Irrit. 2
STOT SE 3

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 535524
Product name: 5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]-7-pyrimidinone
Purity: 97%
Packaging: 10g
Price: $71.4
Updated: 2023/06/20

TCI Chemical

Product number: E1134
Product name: 5-(2-Ethoxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]-7-pyrimidinone
Purity: >98.0%(HPLC)(T)
Packaging: 5g
Price: $80
Updated: 2025/07/31

TCI Chemical

Product number: E1134
Product name: 5-(2-Ethoxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]-7-pyrimidinone
Purity: >98.0%(HPLC)(T)
Packaging: 25g
Price: $233
Updated: 2025/07/31

TRC

Product number: E892725
Product name: 5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
Packaging: 2g
Price: $105
Updated: 2021/12/16

Apolloscientific

Product number: OR939027
Product name: 5-(2-Ethoxyphenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one
Purity: 95%
Packaging: 5g
Price: $38
Updated: 2021/12/16

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5-(2-ETHOXYPHENYL)-1-METHYL-3-N-PROPYL-1,6-DIHYDRO-7H-PYRAZOLO[4,3-D]-7-PYRIMIDINONE Chemical Properties,Usage,Production

Chemical Properties

Light-Yellow Solid

Uses

Sildenafil impurity.

Definition

ChEBI: Imidazosagatriazinone is a pyrazolopyrimidine.

IC 50

PDE5: 5 nM (IC₅₀); PDE1: 300 nM (IC₅₀)

5-(2-ETHOXYPHENYL)-1-METHYL-3-N-PROPYL-1,6-DIHYDRO-7H-PYRAZOLO[4,3-D]-7-PYRIMIDINONE Preparation Products And Raw materials

Raw materials

Stannous chloride dihydrate Potassium tert-butoxide Ethanol Diethyl oxalate Sodium tert-Butanol Salicylaldehyde Nitric acid Methylhydrazine Bromoethane 2-Pentanone Thionyl chloride Sulfuric acid

Preparation Products

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5-(2-ETHOXYPHENYL)-1-METHYL-3-N-PROPYL-1,6-DIHYDRO-7H-PYRAZOLO[4,3-D]-7-PYRIMIDINONE Suppliers

Americas 1 Canada 2 China 171 Europe 1 Germany 3 India 32 Japan 1 South Korea 1 Spain 1 Switzerland 2 United Kingdom 4 United States 29 Global 248

Hubei Tuobang Chemical Co., Ltd.

Tel: 13986192185 13986192185
Email: 1466039@qq.com
Country: China
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Yunnan Convek biochemistry Co., Ltd.

Tel: 18687219753 18687219753
Email: 3836098249@qq.com
Country: China
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Shanghai Witofly Chemical Co. ,Ltd.

Tel: 02150630626 17717886015
Email: sales@witofly.com
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J & K SCIENTIFIC LTD.

Tel: 18210857532; 18210857532
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TCI (Shanghai) Development Co., Ltd.

Tel: 021-67121386
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Ark Pharm, Inc.

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Beijing Ouhe Technology Co., Ltd

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Email: 2355560935@qq.com
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Adamas Reagent, Ltd.

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Nanjing Chemlin Chemical Co., Ltd

Tel: 025-83697070 13913916777;
Fax: +86-25-83453306
Email: info@chemlin.com.cn
Country: China
ProdList: 15724
Advantage: 64

Shanghai Hanhong Scientific Co.,Ltd.

Tel: 021-54306202 13764082696
Email: info@hanhongsci.com
Country: China
ProdList: 42934
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View Lastest Price from 5-(2-ETHOXYPHENYL)-1-METHYL-3-N-PROPYL-1,6-DIHYDRO-7H-PYRAZOLO[4,3-D]-7-PYRIMIDINONE manufacturers

Career Henan Chemical Co

Product: 5-(2-ETHOXYPHENYL)-1-METHYL-3-N-PROPYL-1,6-DIHYDRO-7H-PYRAZOLO[4,3-D]-7-PYRIMIDINONE 139756-21-1
Price: US $3.00/KG
Min. Order: 1ASSAYS
Purity: 99%
Supply Ability: 100kg
Release date: 2019-09-03

139756-21-1, 5-(2-ETHOXYPHENYL)-1-METHYL-3-N-PROPYL-1,6-DIHYDRO-7H-PYRAZOLO[4,3-D]-7-PYRIMIDINONERelated Search:

4-Amino-1-methyl-3-propyl-5-pyrazolecarboxamide Sildenafil Impurity F 5-chloro-2-ethoxybenzoic acid KF31327 5-CHLOROSULFONYL-2-ETHOXYBENZOIC ACID 2-ETHOXY-5-[(4-METHYLPIPERAZIN-1-YL)SULFONYL]BENZOIC ACID 1-Piperazinesulfonicacid,4-methyl-(9CI) Sulfosalicylic acid Sildenafil Chlorosulfonyl 4-(2-Ethoxy benzamido)-1-methyl-3-n-propyl pyrazole-5-carboxamide. 5-chloro-2-ethoxybenzoyl chloride 1-METHYL-4-NITRO-3-PROPYL-1H-PYRAZOLE-5-CARBOXYLIC ACID Propoxyphenyl ThiohoMosidenafil 1-Methyl-4-nitro-3-propyl-(1H)-pyrazole-5-carboxamide 5-DIMETHOXYMETHYL-BENZO[1,3]DIOXOLE 1H-Pyrazolo[4,3-d]pyriMidine, 3-(2-Methylpropyl)- N-Des[2-(1-methyl-2-pyrrolidinyl)ethyl] Udenafil 2-Ethoxybenzoyl chloride

5-(2-ETHOXYPHENYL)-1-METHYL-3-N-PROPYL-1

5-(2-ethoxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7h-pyrazolo[4,3-d]-7-pyrimidinone

5-(2-Ethoxy Phenyl)-1,6-Dihydro-1-MethyI-3-Propyl-7H-Pyrazolo-[4,3-d] Pyrimidin-7-one.

5-(2-ETHOXYPHENYL)-1-ME-3-N-PROPYL-1,6-DIHYDRO-7H-PYRAZOLO(4,3D)-7-PYRIMIDIN

5-(2-ETHOXYPHENYL)-1-METHYL-3-N-PROPYL-1,6-DIHYDRO-7H-PYRAZOLO[4,3-D]-7-PYRIMIDINONE

5-(2-ETHOXYPHENYL)-1-METHYL-3-N-PROPYL-1,6-DIHYDRO-7H-PYRAZOLO[4,3-D]PYRIMIDIN-7-ONE

7H-PYRAZOLO[4,3-D]PYRIMIDIN-7-ONE,5-(2-ETHOXYPHENYL)-1,4-DIHYDRO-1-METHYL-3-PROPYL-

Sildenafil LactaM IMpurity

5-(2-ethoxyphenyl)-1-methyl-3-propyl-1,4-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one

UK 088800

5-(2-Ethoxyphenyl)-1-Methyl-3-propyl-1H-pyrazolo[4,3-d]pyriMidin-7(6H)-one

5-(2-ethoxyphenyl)-1-Methyl-3-propyl-6H-pyrazolo[4,3-d]pyriMidin-7-one

5-(2-Ethoxyphenyl)-1-Methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]-7-pyriMidinone

5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]-7-pyrimidinone

-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)

5-(2-Ethoxyphenyl)

5-(2-Ethoxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazole[4,3-d]pyrimidine-7-one

5-(2-ethoxyphenyl)-1-methyl-3-propyl-1H,4H,7H-pyrazolo[4,3-d]pyrimidin-7-one

5-(2-ethoxyphenyl)-1-methyl-3-propyl

5-(2-ETHOXY PHENYL)-1-METHYL-3-N-PROPYL- 1 6-DIHYDRO-7H-PYRAZOLO-(4 3D)PYRIMIDINE

5-(2-Ethoxyphenyl)-1-methyl-3n-prop

7H-Pyrazolo[4,3-d]pyrimidin-7-one, 5-(2-ethoxyphenyl)-1,6-dihydro-1-methyl-3-propyl-

5-(2-Ethoxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one

5-(2-ethoxyphenyl)-1-methyl-3-propyl-1H,6H,7H-pyrazolo[4,3-d]pyrimidin-7-one

5-(2-ethoxyphenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7-ol

Sildenafil impurity E(Sildenafil Lactam Impurity)

5-(2-ethoxyphenyl)-1-methyl-3-propyl-4H-pyrazolo[4,3-d]pyrimidin-7-one

5-(2-Ethoxyphenyl)-1-Methyl-3-N-Propyl-1,6-Dihydro-7H-Pyrazo...

Tianfu Chem 5-(2-ETHOXYPHENYL)-1-METHYL-3-N-PROPYL-1,6-DIHYDRO-7H-PYRAZOLO[4,3-D]-7-PYRIMIDINONE

DPX 84

5-(2-Ethoxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]-7-pyrimidinone CAS NO.139756-21-1

PDE5-IN-7

5-(2-ethoxyphenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one (EMP)

5-(2-Ethoxypheny1)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one

5-(2-ethoxyphenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(4H)-one

Sildenafil citrate impurity L

UK 088800, 10 mM in DMSO

Sildenafil pyrimidinone

139756-21-1

Heterocyclic Building Blocks

Pyrimidines

Building Blocks

Heterocyclic Compounds

Nucleotides and Nucleosides

Bases & Related Reagents

Intermediates

Nucleotides

Building Blocks

Heterocyclic Building Blocks

Pyrimidines