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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

5-(2-ETHOXYPHENYL)-1-METHYL-3-N-PROPYL-1,6-DIHYDRO-7H-PYRAZOLO[4,3-D]-7-PYRIMIDINONE Structure
5-(2-ETHOXYPHENYL)-1-METHYL-3-N-PROPYL-1,6-DIHYDRO-7H-PYRAZOLO[4,3-D]-7-PYRIMIDINONE structure
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);Sildenafil pyrimidinone;5-(2-ethoxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7h-pyrazolo[4,3-d]-7-pyrimidinone;DPX 84;UK 088800;PDE5-IN-7;UK 088800 (Standard);UK 088800, 10 mM in DMSO;Sildenafil LactaM IMpurity
CBNumber:
CB3155530
Molecular Formula:
C17H20N4O2
Molecular Weight:
312.37
MDL Number:
MFCD03093929
MOL File:
139756-21-1.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 01:00:55
Product description Number Pack Size Price
5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]-7-pyrimidinone 97% 535524 10g $71.4
5-(2-Ethoxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]-7-pyrimidinone >98.0%(HPLC)(T) E1134 5g $64
5-(2-Ethoxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]-7-pyrimidinone >98.0%(HPLC)(T) E1134 25g $186
5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one E8577-45 500mg $340
5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one Asreported 296106 500mg $432
More product size
Request For Quotation

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

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
FDA UNII E4M9V1JW7V
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P264-P271-P280-P302+P352-P305+P351+P338
target organs Respiratory system
PPE dust mask type N95 (US), Eyeshields, Gloves
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
NFPA 704
0
2 0

5-(2-ETHOXYPHENYL)-1-METHYL-3-N-PROPYL-1,6-DIHYDRO-7H-PYRAZOLO[4,3-D]-7-PYRIMIDINONE price More Price(76)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 535524 5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]-7-pyrimidinone 97% 139756-21-1 10g $71.4 2023-06-20 Buy
TCI Chemical E1134 5-(2-Ethoxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]-7-pyrimidinone >98.0%(HPLC)(T) 139756-21-1 5g $64 2026-04-30 Buy
TCI Chemical E1134 5-(2-Ethoxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]-7-pyrimidinone >98.0%(HPLC)(T) 139756-21-1 25g $186 2026-04-30 Buy
Usbiological E8577-45 5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one 139756-21-1 500mg $340 2026-06-03 Buy
Usbiological 296106 5-(2-Ethoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one Asreported 139756-21-1 500mg $432 2026-06-03 Buy
Product number Packaging Price Buy
535524 10g $71.4 Buy
E1134 5g $64 Buy
E1134 25g $186 Buy
E8577-45 500mg $340 Buy
296106 500mg $432 Buy

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

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Preparation Products

Thiosildenafil 5-[5-(2-Chloroacetyl)-2-ethoxyphenyl]-1,6-dihydro-1-Methyl-3-propyl-7H-pyrazolo[4,3-d]pyriMidin-7-one Hydroxyhomosildenafil 5-(2-Ethoxyphenyl)-1,6-dihydro-1-Methyl-3-propyl-7H-pyrazolo[4,3-d]pyriMidine-7-thione 7H-Pyrazolo[4,3-d]pyrimidin-7-one, 5-(5-bromo-2-ethoxyphenyl)-1,6-dihydro-1-methyl-3-propyl-

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

Global( 254)Suppliers
Supplier Tel Email Country ProdList Advantage
Henan Tianfu Chemical Co.,Ltd. 		+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21587 55
career henan chemical co 		+86-0371-86658258 +8613203830695 sales@coreychem.com China 29815 58
Zhejiang ZETian Fine Chemicals Co. LTD 		+8618957127338 stella@zetchem.com China 2994 58
Alchem Pharmtech,Inc. 		8485655694 sales@alchempharmtech.com United States 63687 58
CONIER CHEM AND PHARMA LIMITED 		+8618523575427 sales@conier.com China 49979 58
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd 		+8613580539051 joe@yuhengpharm.com CHINA 21142 58
Neostar United (Changzhou) Industrial Co., Ltd. 		+86-0519-85551759 +8613506123987 marketing1@neostarunited.com China 8828 58
TargetMol Chemicals Inc. 		+1-781-999-5354; +17819995354 marketing@targetmol.com United States 32466 58
Hubei Ipure Biology Co., Ltd 		+8613367258412 ada@ipurechemical.com China 10236 58
HANGZHOU CLAP TECHNOLOGY CO.,LTD 		86-571-88216897,88216896 13588875226 sales@hzclap.com CHINA 6312 58
Supplier Advantage
Henan Tianfu Chemical Co.,Ltd. 		55
career henan chemical co 		58
Zhejiang ZETian Fine Chemicals Co. LTD 		58
Alchem Pharmtech,Inc. 		58
CONIER CHEM AND PHARMA LIMITED 		58
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd 		58
Neostar United (Changzhou) Industrial Co., Ltd. 		58
TargetMol Chemicals Inc. 		58
Hubei Ipure Biology Co., Ltd 		58
HANGZHOU CLAP TECHNOLOGY CO.,LTD 		58

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

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
5-(2-ETHOXYPHENYL)-1-METHYL-3-N-PROPYL-1,6-DIHYDRO-7H-PYRAZOLO[4,3-D]-7-PYRIMIDINONE pictures 2026-06-08 5-(2-ETHOXYPHENYL)-1-METHYL-3-N-PROPYL-1,6-DIHYDRO-7H-PYRAZOLO[4,3-D]-7-PYRIMIDINONE
139756-21-1
 0.99 RongNa Biotechnology Co.,Ltd
UK 088800 pictures 2026-05-11 UK 088800
139756-21-1
 $30.00 99.91% 10g TargetMol Chemicals Inc.
5-(2-ETHOXYPHENYL)-1-METHYL-3-N-PROPYL-1,6-DIHYDRO-7H-PYRAZOLO[4,3-D]-7-PYRIMIDINONE pictures 2019-09-04 5-(2-ETHOXYPHENYL)-1-METHYL-3-N-PROPYL-1,6-DIHYDRO-7H-PYRAZOLO[4,3-D]-7-PYRIMIDINONE
139756-21-1
 $3.00 1ASSAYS 99% 100kg Career Henan Chemical Co
  • UK 088800 pictures
  • UK 088800
    139756-21-1
  • $30.00
  • 99.91%
  • TargetMol Chemicals Inc.

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

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

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

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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 UK 088800 (Standard) 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