1H,1'H-4,4'-Bipyrazole

Name: 1H,1'H-4,4'-Bipyrazole
Brand: ChemScene
Availability: InStock
Rating: 5 (1 reviews)

CAS No. 25240-33-9
Cat. No. CS-0170430
Purity≥95%
MDL No.MFCD02973360

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HazMat Fee

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Each bottle is packed as an Excepted Quantity, with a maximum of 1g for items in class 6.1 packing group I or II, and up to 25g for all other hazardous materials.

If shipping is charged to your FedEx account, the HazMat fee will be billed directly by the courier. Otherwise, the fee will be included on your invoice. To help you avoid the HazMat fee, we can package a 5g order of a class 6.1 packing group I or II material as five separate 1g units, and a 100g order of any other dangerous good as four 25g units. This packaging adjustment will be made unless you instruct otherwise on your purchase order. Below, you will find the fee schedule from FedEx for handling hazardous materials.

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+

An item is classified as a dangerous good if our website displays Hazardous Material (HazMat) information for it.

There is a HazMat shipping fee for each item that qualifies as a dangerous good. Please contact our quotation team via email to confirm the details.

*For research and further manufacturing use only, not for direct human use.

Structure of 25240-33-9

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Description

1H,1'H-4,4'-Bipyrazole features a rigid, planar architecture with two pyrazole rings linked at the 4,4'-positions, enabling strong π–π stacking and metal coordination. This bifunctional scaffold integrates readily into coordination networks and serves as a robust ligand in supramolecular assemblies and porous materials.

Application

1H,1'H-4,4'-Bipyrazole serves as a versatile bifunctional building block in synthetic chemistry, enabling the construction of heterocyclic scaffolds through palladium-catalyzed cross-coupling reactions. Its robust stability under standard reaction conditions and tolerance to diverse functional groups facilitate efficient synthesis of biaryl systems and nitrogen-rich frameworks relevant to medicinal chemistry and materials science.

General Information

CAS No. 25240-33-9
Cat. No. CS-0170430
Purity ≥95%
MDL No. MFCD02973360
Storage Store at room temperature
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₆H₆N₄
Molecular Weight 134.14
Synonym(s) 4-(1H-Pyrazol-4-yl)-1H-pyrazole
SMILES N1=CC(=CN1)C=2C=NNC2

Computational Chemistry Data

TPSA 57.36
LogP 0.7998
H_Acceptors 2
H_Donors 2
Rotatable_Bonds 1

Safety Information

Download SDS

GHS Pictogram :	GHS No : GHS07
Signal Word : Warning	UN#: N/A
Class : N/A	Packing Group : N/A
Hazard Statements : H315-H319
Precautionary Statements : P264-P280-P302+P352-P362+P364

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1H,1'H-4,4'-Bipyrazole

CAS No. 25240-33-9

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