Indole-5-carboxylic acid, 95%

About Indole-5-carboxylic acid, 95%

Indole-5-carboxylic acid is an indole derivative carrying the CAS registry number 1670-81-1 at a purity of 95%. With the molecular formula C9H7NO2, it has a molar mass of 161.16 g/mol. Systematically, it is named 1H-indole-5-carboxylic acid. Common synonyms include 5-Carboxyindole and 5-indolecarboxylic acid.

The product is provided as a solid. Literature values give a melting point of 211-213 °C. Store in a tightly closed container in a cool, dry and well-ventilated place. It carries the GHS signal word “Warning” with 5 hazard statements. Review the Safety Data Sheet before use.

It is commonly used for fluorescent labelling and solvent and extraction work. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 1 g, 5 g, 100 g and 1 kg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Fluorescent labelling
Solvent & extraction work

Industries

Specifications & identifiers

Chemical identifiers
Product name	Indole-5-carboxylic acid, 95%
Catalogue No.	VQ-012052
CAS Number	1670-81-1
IUPAC name	1H-indole-5-carboxylic acid
Molecular formula	C₉H₇NO₂
Molecular weight	161.16 g/mol
Exact mass	161.0477
Purity / assay	95%
HSN code	29339900
InChIKey	IENZCGNHSIMFJE-UHFFFAOYSA-N
SMILES	C1=CC2=C(C=CN2)C=C1C(=O)O
PubChem CID	74280

Physical properties
Physical form	Solid
Appearance	Solid
Melting point	211-213 °C
LogP (XLogP3)	1.5
H-bond donors / acceptors	2 / 2
TPSA	53.1 Å²
Synonyms	5-Carboxyindole, 5-indolecarboxylic acid, Indole-5-carboxylic acid, 98%, 5-indole carboxylic acid, 4ZV, indol-5-carboxylic acid, Indole 5-carboxylic acid, Indole-5-carboxylic acid., 1H-Indole-5-carboxylicacid, Indole-5-carboxylic acid, 99%, Indole-5-carboxylic acid, ~95% (TLC)

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed
H312Harmful in contact with skin
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P317, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, 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 Indole-5-carboxylic acid, 95%?

The CAS Registry Number of Indole-5-carboxylic acid, 95% is 1670-81-1. It is also known as 5-Carboxyindole, 5-indolecarboxylic acid, Indole-5-carboxylic acid, 98%.

What is the molecular formula and molecular weight of Indole-5-carboxylic acid, 95%?

Indole-5-carboxylic acid, 95% has the molecular formula C9H7NO2 and a molecular weight of 161.16 g/mol. Its IUPAC name is 1H-indole-5-carboxylic acid.

Which grade and pack sizes of Indole-5-carboxylic acid, 95% can I order?

We supply Indole-5-carboxylic acid, 95% in (95%) grade, in 1 g, 5 g, 100 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Indole-5-carboxylic acid, 95%?

Yes. Every lot of Indole-5-carboxylic acid, 95% 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 Indole-5-carboxylic acid, 95% be shipped internationally?

Yes. Indole-5-carboxylic acid, 95% 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.