2,6-Diiodobenzene-1,4-diol

About 2,6-Diiodobenzene-1,4-diol

2,6-Diiodobenzene-1,4-diol is a process intermediate or related compound of Levothyroxine carrying the CAS registry number 1955-21-1. The compound has the formula C6H4I2O2, corresponding to a molecular weight of 361.9 g/mol. It is also known as 2,6-Diiodohydroquinone or 1,4-Benzenediol, 2,6-diiodo-.

It is supplied as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. Handle it with standard laboratory precautions and appropriate personal protective equipment.

Process chemists and analysts use it when developing synthetic routes to Levothyroxine, tracking process-related impurities and validating analytical methods. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

We offer 2,6-Diiodobenzene-1,4-diol in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

API route development
Impurity fate & purge studies
Analytical method development

Industries

Related to Levothyroxine

View every impurity, metabolite and intermediate we list for Levothyroxine.

Levothyroxine impurities

Specifications & identifiers

Chemical identifiers
Product name	2,6-Diiodobenzene-1,4-diol
Catalogue No.	VQ-049704
CAS Number	1955-21-1
IUPAC name	2,6-diiodobenzene-1,4-diol
Molecular formula	C₆H₄I₂O₂
Molecular weight	361.9 g/mol
Exact mass	361.8301
InChIKey	TXLWEPPRCDCHRB-UHFFFAOYSA-N
SMILES	C1=C(C=C(C(=C1I)O)I)O
PubChem CID	74775

Physical properties
Physical form	Solid
LogP (XLogP3)	1.9
H-bond donors / acceptors	2 / 2
TPSA	40.5 Å²
Synonyms	2,6-Diiodohydroquinone, 1,4-Benzenediol, 2,6-diiodo-, 2,6-Diiodo-1,4-benzenediol, 3,5-Diiodobenzoquinone, 2,6-Diiodoquinol, Hydroquinone, 2,6-diiodo-, 2,6-Diiodo-1,4-benzenediol #

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of 2,6-Diiodobenzene-1,4-diol?

The CAS Registry Number of 2,6-Diiodobenzene-1,4-diol is 1955-21-1. It is also known as 2,6-Diiodohydroquinone, 1,4-Benzenediol, 2,6-diiodo-, 2,6-Diiodo-1,4-benzenediol.

What is the molecular formula and molecular weight of 2,6-Diiodobenzene-1,4-diol?

2,6-Diiodobenzene-1,4-diol has the molecular formula C6H4I2O2 and a molecular weight of 361.9 g/mol. Its IUPAC name is 2,6-diiodobenzene-1,4-diol.

What is 2,6-Diiodobenzene-1,4-diol used for?

2,6-Diiodobenzene-1,4-diol is supplied as a characterised reference material related to Levothyroxine. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of 2,6-Diiodobenzene-1,4-diol can I order?

We supply 2,6-Diiodobenzene-1,4-diol, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 2,6-Diiodobenzene-1,4-diol?

Yes. Every lot of 2,6-Diiodobenzene-1,4-diol is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can 2,6-Diiodobenzene-1,4-diol be shipped internationally?

Yes. We export 2,6-Diiodobenzene-1,4-diol worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.