Sildenafil intermediate B

BGC Id:	732381761312
CAS No:	139756-21-1
Synonyms:	5-(2-ethoxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7h-pyrazolo[4,3-d]-7-pyrimidinone ; 5-(2-ethoxyphenyl)-1-me-3-n-propyl-1,6-dihydro-7h-pyrazolo(4,3d)-7-pyrimidin ; 5-(2-ethoxyphenyl)-1-methyl-3-propyl-1h-pyrazolo[4,3-d]pyrimidin-7(6h)-one ; uk 088800 ; sildenafil lactam impurity ; 5-(2-ethoxyphenyl)-1-methyl-3-propyl-6h-pyrazolo[4,3-d]pyrimidin-7-one ; 5-(2-ethoxyphenyl)-1-methyl-3-propyl-1,4-dihydro-7h-pyrazolo[4,3-d]pyrimidin-7-one ; 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- ; 5-(2-ethoxyphenyl)-1-methyl-3-n-propyl-1
Molecular Formula:	C17H20N4O2
Molecular Weight:	312.37
EINECS:

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Identify

Synonyms:

5-(2-ethoxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7h-pyrazolo[4,3-d]-7-pyrimidinone ; 5-(2-ethoxyphenyl)-1-me-3-n-propyl-1,6-dihydro-7h-pyrazolo(4,3d)-7-pyrimidin ; 5-(2-ethoxyphenyl)-1-methyl-3-propyl-1h-pyrazolo[4,3-d]pyrimidin-7(6h)-one ; uk 088800 ; sildenafil lactam impurity ; 5-(2-ethoxyphenyl)-1-methyl-3-propyl-6h-pyrazolo[4,3-d]pyrimidin-7-one ; 5-(2-ethoxyphenyl)-1-methyl-3-propyl-1,4-dihydro-7h-pyrazolo[4,3-d]pyrimidin-7-one ; 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- ; 5-(2-ethoxyphenyl)-1-methyl-3-n-propyl-1

CAS:

139756-21-1

EINECS:

Molecular Formula:

C17H20N4O2

MDL:

MFCD03093929

Properties

Molecular Weight:

312.37 g·mol−1

Melting point:

141-145 °C(lit.)

Safety Information

Hazard Symbols: Xi

Europe standard Hazard pictograms, code and definition

Hazard Classes:

Risk Codes:

36/37/38 (R)

Safety Codes:

26-36 (S)

WGK Germany:

Storage temperature:

Refrigerator

What other providers are available for CAS 139756-21-1?

In addition to the providers presented here for Sildenafil intermediate B with the CAS number 139756-21-1, there are other 37 providers with slightly different product names available for this CAS number.

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