3-Amino-4-pyridazinecarboxylic acid

Name: 3-Amino-4-pyridazinecarboxylic acid
Brand: ChemScene
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CAS No. 21141-03-7
Cat. No. CS-W002763
Molecule weight139.11
Purity≥97%
MDL No.MFCD01318258

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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+
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3-Amino-4-pyridazinecarboxylic acid|CS-W002763

Structure of 21141-03-7

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General Information

CAS No. 21141-03-7
Cat. No. CS-W002763
Purity ≥97%
MDL No. MFCD01318258
Storage -20°C, sealed storage, away from moisture and light
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₅H₅N₃O₂
Molecular Weight 139.11
Synonym(s) 4-Pyridazinecarboxylicacid,3-amino-(8CI,9CI)
SMILES OC(=O)c1ccnnc1N

Description

3-Amino-4-pyridazinecarboxylic acid features a pyridazine core functionalized with amino and carboxylic acid groups at adjacent positions, enabling versatile conjugation in medicinal chemistry. This bifunctional scaffold integrates readily into bioactive molecules, offering enhanced solubility and hydrogen-bonding capacity for drug discovery applications.

Application

3-Amino-4-pyridazinecarboxylic acid serves as a versatile building block in medicinal chemistry, enabling access to diverse heterocyclic scaffolds through standard coupling and functionalization reactions. Its amino and carboxylic acid groups offer orthogonal reactivity for peptide bond formation, amidation, and derivatization, facilitating the synthesis of targeted compounds. The molecule exhibits good bench stability and is compatible with common protecting group strategies, supporting efficient purification and integration into multi-step syntheses.

Synthesis

Route1
- 34122-01-5
- ~93%
- In-stock
  
  21141-03-7
References
- Styles, Virgil L.; Morrison, Robert W. Journal of Organic Chemistry, 1985 , vol. 50, # 3 p. 346 - 350
Route2
- 94295-31-5
- ~%
- In-stock
  
  21141-03-7
References
- Journal of Organic Chemistry, , vol. 50, # 3 p. 346 - 350

Safety Information

Download SDS

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 89.1
LogP -0.243
H_Acceptors 4
H_Donors 2
Rotatable_Bonds 1

Other Classifications

Building Blocks Functional Group Carboxylic Acid

Building Blocks Skeleton Aromatic heterocycle compounds Pyridazine compounds

Key Words

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3-Amino-4-pyridazinecarboxylic acid

CAS No. 21141-03-7

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