Acid red 249

Name: Acid red 249
Brand: Vaqora Chemicals
SKU: VQ-020447

About Acid red 249

Acid red 249 is an indicator carrying the CAS registry number 6416-66-6. With the molecular formula C29H20ClN3Na2O10S3, it has a molar mass of 748.1 g/mol. Alternative names: Tracid Brilliant Red B and C.I. Acid Red 249.

Store sealed in a dry, well-ventilated location away from incompatible materials. Handle it with standard laboratory precautions and appropriate personal protective equipment.

It is commonly used for titration end-point detection, pH determination, analytical testing and indicator for titrations. Typical end-use sectors are academic and industrial research and textiles and dyeing.

Vaqora Chemicals supplies Acid red 249 in 5 g packs, each shipped with a Certificate of Analysis (COA), and exports worldwide. A Safety Data Sheet (SDS) and technical specifications are available on request. Custom pack sizes, bulk quantities and specific analytical data can be arranged on request.

Typical applications

Titration end-point detection
pH determination
Analytical testing
Indicator for titrations

Industries

Specifications & identifiers

Chemical identifiers
Product name	Acid red 249
Catalogue No.	VQ-020447
CAS Number	6416-66-6
IUPAC name	disodium;3-[(5-chloro-2-phenoxyphenyl)diazenyl]-4-hydroxy-5-[(4-methylphenyl)sulfonylamino]naphthalene-2,7-disulfonate
Molecular formula	C₂₉H₂₀ClN₃Na₂O₁₀S₃
Molecular weight	748.1 g/mol
Exact mass	746.9795
InChIKey	XDBZPHDFHYZHNG-UHFFFAOYSA-L
SMILES	CC1=CC=C(C=C1)S(=O)(=O)NC2=C3C(=CC(=C2)S(=O)(=O)[O-])C=C(C(=C3O)N=NC4=C(C=CC(=C4)Cl)OC5=CC=CC=C5)S(=O)(=O)[O-].[Na+].[Na+]
PubChem CID	160832

Physical properties
Physical form	Other
H-bond donors / acceptors	2 / 13
TPSA	240 Å²

Safety & hazard information (GHS)

Environmental hazard

Hazard statements

H411Toxic to aquatic life with long lasting effects

Precautionary statements: P273, 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 Acid red 249?

The CAS Registry Number of Acid red 249 is 6416-66-6. It is also known as Tracid Brilliant Red B, C.I. Acid Red 249.

What is the molecular formula and molecular weight of Acid red 249?

Acid red 249 has the molecular formula C29H20ClN3Na2O10S3 and a molecular weight of 748.1 g/mol.

Which grade and pack sizes of Acid red 249 can I order?

We supply Acid red 249, in 5 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Acid red 249?

Yes. Every lot of Acid red 249 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 Acid red 249 be shipped internationally?

Yes. Acid red 249 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.