5,6-Dihydroxyindole

Name: 5,6-Dihydroxyindole
Brand: Vaqora Chemicals
SKU: VQ-038943

About 5,6-Dihydroxyindole

Vaqora Chemicals supplies 5,6-Dihydroxyindole, an impurity of Phenothiazine registered under CAS number 3131-52-0. Its molecular formula is C8H7NO2 and its molecular weight is 149.15 g/mol. Its systematic (IUPAC) name is 1H-indole-5,6-diol. Alternative names: Dopamine lutine and 5,6-Dihydroxy-1H-indole.

It is supplied as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

As a characterised impurity of Phenothiazine, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies 5,6-Dihydroxyindole in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Industries

Related to Phenothiazine

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

Phenothiazine impurities

Specifications & identifiers

Chemical identifiers
Product name	5,6-Dihydroxyindole
Catalogue No.	VQ-038943
CAS Number	3131-52-0
IUPAC name	1H-indole-5,6-diol
Molecular formula	C₈H₇NO₂
Molecular weight	149.15 g/mol
Exact mass	149.0477
Grade	Reference Standard
HSN code	38229090
InChIKey	SGNZYJXNUURYCH-UHFFFAOYSA-N
SMILES	C1=CNC2=CC(=C(C=C21)O)O
PubChem CID	114683

Physical properties
Physical form	Solid
LogP (XLogP3)	1.3
H-bond donors / acceptors	3 / 2
TPSA	56.3 Å²

Safety & hazard information (GHS)

Corrosive

Harmful / irritant

Environmental hazard

Signal word: Danger

Hazard statements

H302Harmful if swallowed
H318Causes serious eye damage
H411Toxic to aquatic life with long lasting effects

Precautionary statements: P264, P264 + P265, P270, P273, P280, P301 + P317, P305 + P354 + P338, P317, P330, P391, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

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 5,6-Dihydroxyindole?

The CAS Registry Number of 5,6-Dihydroxyindole is 3131-52-0. It is also known as Dopamine lutine, 5,6-Dihydroxy-1H-indole, indole-5,6-diol.

What is the molecular formula and molecular weight of 5,6-Dihydroxyindole?

5,6-Dihydroxyindole has the molecular formula C8H7NO2 and a molecular weight of 149.15 g/mol. Its IUPAC name is 1H-indole-5,6-diol.

What is 5,6-Dihydroxyindole used for?

5,6-Dihydroxyindole is supplied as a characterised reference material related to Phenothiazine. 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 5,6-Dihydroxyindole can I order?

We supply 5,6-Dihydroxyindole in Reference Standard grade, 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 5,6-Dihydroxyindole?

Yes. Every lot of 5,6-Dihydroxyindole 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 5,6-Dihydroxyindole be shipped internationally?

Yes. 5,6-Dihydroxyindole is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.