ChemicalBook > CAS DataBase List > 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

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
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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
Biosynth Carbosynth
Product number
NE16544
Product name
5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
Packaging
5G
Price
$100
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 174 Europe 1 Germany 3 India 32 Japan 1 South Korea 1 Spain 1 Switzerland 2 United Kingdom 4 United States 29 Global 251
HPC Standards GmbH
Tel
--
Fax
--
Email
chulze@hpc-standards.com
Country
Germany
ProdList
2139
Advantage
58
CHEMOS GmbH & Co. KG
Tel
--
Fax
--
Email
chemos@chemos.de
Country
Germany
ProdList
6727
Advantage
58
Service Chemical Inc.
Tel
--
Fax
--
Email
sales@chemos-group.com
Country
Germany
ProdList
6350
Advantage
71
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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-<WBR>(2-<WBR>Ethoxyphenyl)<WBR>-<WBR>1-<WBR>Methyl-<WBR>3-<I>n</I>-<WBR>propyl-<WBR>1,6-<WBR>dihydro-<WBR>7<I>H</I>-pyrazolo[4,3-<I>d</I>]-7-pyriMidinone
  • 5-(2-Ethoxyphenyl)-1-methyl-3-<I>n</I>-propyl-1,6-dihydro-7<I>H</I>-pyrazolo[4,3-<I>d</I>]-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