Pyrido[4,3-d]pyrimidin-4(3H)-one

Name: Pyrido[4,3-d]pyrimidin-4(3H)-one
Brand: ChemScene
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CAS No. 16952-64-0
Cat. No. CS-0051349
Purity≥95%
MDL No.None

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Type	HazMat Fee
Excepted Quantity	$0.00
FedEx Limited Quantities Ground	$0.00
Hazmat Ground shipping	$50.00+
Inaccessible (Haz class 6.1 or 9), Domestic	$68.00+
Accessible (Haz class 3, 4, 5 or 8), Domestic	$158.00+
Inaccessible (Haz class 6.1 or 9), International	$108.00+
Accessible (Haz class 3, 4, 5 or 8), International	$238.00+

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Pyrido[4,3-d]pyrimidin-4(3H)-one|CS-0051349

Structure of 16952-64-0

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General Information

CAS No. 16952-64-0
Cat. No. CS-0051349
Purity ≥95%
MDL No. None
Storage Store at room temperature
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₇H₅N₃O
Molecular Weight 147.13
Synonym(s) Pyrido[4,3-d]pyrimidin-4(1H)-one (9CI)
SMILES O=C1NC=NC2=C1C=NC=C2

Description

Pyrido[4,3-d]pyrimidin-4(3H)-one features a fused heteroaromatic core with hydrogen-bonding capacity at the lactam carbonyl and N-H positions. This scaffold serves as a privileged motif in medicinal chemistry, enabling robust integration into kinase inhibitors and nucleoside analogs due to its planar geometry and favorable binding interactions.

Application

Pyrido[4,3-d]pyrimidin-4(3H)-one serves as a privileged scaffold in medicinal chemistry, enabling efficient access to biologically active heterocycles. Its fused bicyclic structure exhibits robust bench stability and tolerates diverse functional groups, facilitating downstream derivatization via standard coupling, alkylation, and nucleophilic substitution reactions. The core functions effectively in the synthesis of kinase inhibitors and other targeted therapeutics, offering predictable reactivity in established synthetic workflows.

Safety Information

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GHS Pictogram :	GHS No : GHS07
Signal Word : Warning	UN#: N/A
Class : N/A	Packing Group : N/A
Hazard Statements : H302-H315-H319-H335
Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P305+P351+P338-P330-P362+P364-P403+P233-P405-P501

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Computational Chemistry Data

TPSA 58.64
LogP 0.3181
H_Acceptors 3
H_Donors 1
Rotatable_Bonds 0

Other Classifications

Building Blocks Skeleton Aromatic heterocycle compounds Pyrimidine compounds

Key Words

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Pyrido[4,3-d]pyrimidin-4(3H)-one

CAS No. 16952-64-0

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