tert-Butyl 3-bromo-4H,5H,6H,7H-pyrazolo[1,5-a]pyrazine-5-carboxylate

Name: tert-Butyl 3-bromo-4H,5H,6H,7H-pyrazolo[1,5-a]pyrazine-5-carboxylate
Brand: ChemScene
Availability: InStock
Rating: 5 (1 reviews)

CAS No. 1196154-25-2
Cat. No. CS-0037076
Purity≥96%
MDL No.None

HazMat Fee +

HazMat Fee

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, except in the following scenarios:

The shipment is processed through FedEx Ground under the Limited Quantity option.

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.

tert-Butyl 3-bromo-4H,5H,6H,7H-pyrazolo[1,5-a]pyrazine-5-carboxylate|CS-0037076

Structure of 1196154-25-2

Size

Price

Quantity

* Please select Quantity before adding items.

Description

tert-Butyl 3-bromo-4H,5H,6H,7H-pyrazolo[1,5-a]pyrazine-5-carboxylate features a brominated pyrazolopyrazine core with a tert-butyl ester handle, enabling direct incorporation into cross-coupling reactions. This bench-stable building block supports rapid access to complex heterocyclic scaffolds in medicinal chemistry and materials science applications.

Application

tert-Butyl 3-bromo-4H,5H,6H,7H-pyrazolo[1,5-a]pyrazine-5-carboxylate serves as a versatile building block for the synthesis of pyrazolo[1,5-a]pyrazine-based scaffolds. Its bromo group enables palladium-catalyzed cross-coupling reactions, while the tert-butyl ester facilitates selective deprotection under mild acidic conditions. The molecule exhibits good bench stability and compatibility with diverse functional groups, enabling efficient access to complex heterocyclic architectures relevant to medicinal chemistry and materials science.

General Information

CAS No. 1196154-25-2
Cat. No. CS-0037076
Purity ≥96%
MDL No. None
Storage 4°C
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₁₁H₁₆BrN₃O₂
Molecular Weight 302.17
Synonym(s) Tert-butyl 3-bromo-6,7-dihydropyrazolo[1,5-A]pyrazine-5(4H)-carboxylate
SMILES CC(C)(C)OC(=O)N1CCN2C(=C(C=N2)Br)C1

Computational Chemistry Data

TPSA 47.36
LogP 2.3963
H_Acceptors 4
H_Donors 0
Rotatable_Bonds 0

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

Quality Control

To search for quality control of cas , please enter both the product number and the lot/batch number.

Other Classifications

Building Blocks Functional Group Bromide

Building Blocks Skeleton Aromatic heterocycle compounds Pyrazole compounds

Building Blocks Skeleton Aliphatic heterocycle compounds Piperazine compounds

Key Words

1196154-25-2 sigma1196154-25-2 manufacturer1196154-25-2 price1196154-25-2 structure1196154-25-2 SDSbuy 1196154-25-21196154-25-2 supplier1196154-25-2 uses1196154-25-2 molecular weightprice of 1196154-25-21196154-25-2 chemical name formula of 1196154-25-2

Salutation:	*Country or Region:
*Applicant Name:	*Organization Name:
*Email Address:	Quantity:
CAS NO. :	Product Name:
Remarks:
Upload Pictures

CAS.No.		Product Name
Applicant Name *		Email Address *
Phone Number *		Organization Name*
Country or Region*		Quantity*
Remarks:

Product Name:
Cat. No.: .		CAS NO. :
Quantity:

tert-Butyl 3-bromo-4H,5H,6H,7H-pyrazolo[1,5-a]pyrazine-5-carboxylate

CAS No. 1196154-25-2

Recommended Products