3-Chloro-4,5-dihydroxybenzaldehyde

Name: 3-Chloro-4,5-dihydroxybenzaldehyde
Brand: ChemScene
Availability: InStock
Rating: 5 (1 reviews)

CAS No. 34098-18-5
Cat. No. CS-0308445
Purity≥97%
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.

3-Chloro-4,5-dihydroxybenzaldehyde|CS-0308445

Structure of 34098-18-5

Size

Price

Quantity

* Please select Quantity before adding items.

Description

3-Chloro-4,5-dihydroxybenzaldehyde features a chlorinated aromatic core with adjacent hydroxyl groups, enabling facile derivatization in synthetic routes. The aldehyde functionality provides a reactive handle for conjugation, while the ortho-diol system enhances metal chelation potential. This compound serves as a key building block in bioactive molecule synthesis and fluorescent probe development.

Application

3-Chloro-4,5-dihydroxybenzaldehyde serves as a versatile building block in medicinal chemistry and natural product synthesis, enabling efficient access to substituted catechol scaffolds. Its ortho-dihydroxy functionality supports metal complexation and oxidative coupling, while the aldehyde group facilitates reductive amination, imine formation, and conjugate addition reactions. The chloro substituent provides a handle for further functionalization via palladium-catalyzed cross-coupling. Bench-stable and amenable to standard purification methods, it functions reliably in multi-step syntheses requiring selective reactivity and functional group compatibility.

General Information

CAS No. 34098-18-5
Cat. No. CS-0308445
Purity ≥97%
MDL No. None
Storage 4°C, stored under nitrogen
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₇H₅ClO₃
Molecular Weight 172.57
Synonym(s) 5-chloroprotocatechualdehyde
SMILES O=CC1=CC(O)=C(O)C(Cl)=C1

Computational Chemistry Data

TPSA 57.53
LogP 1.5637
H_Acceptors 3
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 : H302-H315-H319-H335
Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P330-P362+P364-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 Chloride

Building Blocks Functional Group Aldehyde

Building Blocks Skeleton Aromatic ring compounds Benzene compounds

Key Words

3-Chloro-4,5-dihydroxybenzaldehyde sigma3-Chloro-4,5-dihydroxybenzaldehyde manufacturer3-Chloro-4,5-dihydroxybenzaldehyde price3-Chloro-4,5-dihydroxybenzaldehyde structure3-Chloro-4,5-dihydroxybenzaldehyde SDSbuy 3-Chloro-4,5-dihydroxybenzaldehyde3-Chloro-4,5-dihydroxybenzaldehyde supplier3-Chloro-4,5-dihydroxybenzaldehyde uses3-Chloro-4,5-dihydroxybenzaldehyde molecular weightprice of 3-Chloro-4,5-dihydroxybenzaldehyde3-Chloro-4,5-dihydroxybenzaldehyde chemical name formula of 3-Chloro-4,5-dihydroxybenzaldehyde

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:

3-Chloro-4,5-dihydroxybenzaldehyde

CAS No. 34098-18-5

Recommended Products