Ethyl orange sodium salt

About Ethyl orange sodium salt

Ethyl orange sodium salt is an indicator carrying the CAS registry number 62758-12-7. Its molecular formula is C16H18N3NaO3S and its molecular weight is 355.4 g/mol. The IUPAC name is sodium 4-[[4-(diethylamino)phenyl]diazenyl]benzenesulfonate. Common synonyms include C16H18N3NaO3S.

The material typically appears as a dark orange powder. Store in a tightly closed container in a cool, dry and well-ventilated place. It carries the GHS signal word “Warning” with 3 hazard statements. Review the Safety Data Sheet before use.

Key uses span titration end-point detection, pH determination, analytical testing and indicator for titrations. Typical end-use sectors are academic and industrial research.

We offer Ethyl orange sodium salt in 10 g, 25 g, 100 g and 1 kg packs with a batch-specific COA, and ship to customers worldwide. SDS and detailed specification sheets can be requested with your quotation.

Typical applications

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

Industries

Specifications & identifiers

Chemical identifiers
Product name	Ethyl orange sodium salt
Catalogue No.	VQ-000356
CAS Number	62758-12-7
IUPAC name	sodium 4-[[4-(diethylamino)phenyl]diazenyl]benzenesulfonate
Molecular formula	C₁₆H₁₈N₃NaO₃S
Molecular weight	355.4 g/mol
Exact mass	355.0967
HSN code	29420090
InChIKey	YZORUOZKRBVLEG-UHFFFAOYSA-M
SMILES	CCN(CC)C1=CC=C(C=C1)N=NC2=CC=C(C=C2)S(=O)(=O)[O-].[Na+]
PubChem CID	23676309

Physical properties
Physical form	Powder
Appearance	Dark orange powder
H-bond donors / acceptors	0 / 6
TPSA	93.5 Å²
Synonyms	4-(4-Diethylaminophenylazo)benzenesulfonic acid sodium salt, Sodium p-[[p-(diethylamino)phenyl]azo]benzenesulphonate, Benzenesulfonic acid, 4-[[4-(diethylamino)phenyl]azo]-, sodium salt, Sodium p-((p-(diethylamino)phenyl)azo)benzenesulphonate, Benzenesulfonic acid, 4-((4-(diethylamino)phenyl)azo)-, sodium salt, Benzenesulfonic acid, 4-(2-(4-(diethylamino)phenyl)diazenyl)-, sodium salt (1:1), Benzenesulfonic acid, 4-[2-[4-(diethylamino)phenyl]diazenyl]-, sodium salt (1:1), C16H18N3NaO3S, sodium (E)-4-((4-(diethylamino)phenyl)diazenyl)benzenesulfonate, Sodium 4-((4-(diethylamino)phenyl)diazenyl)benzenesulfonate, 4-{[4-(diethylamino)phenyl]diazenyl}benzenesulfonic acid, sodium salt

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, 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 Ethyl orange sodium salt?

The CAS Registry Number of Ethyl orange sodium salt is 62758-12-7. It is also known as 4-(4-Diethylaminophenylazo)benzenesulfonic acid sodium salt, Sodium p-[[p-(diethylamino)phenyl]azo]benzenesulphonate, Benzenesulfonic acid, 4-[[4-(diethylamino)phenyl]azo]-, sodium salt.

What is the molecular formula and molecular weight of Ethyl orange sodium salt?

Ethyl orange sodium salt has the molecular formula C16H18N3NaO3S and a molecular weight of 355.4 g/mol. Its IUPAC name is sodium 4-[[4-(diethylamino)phenyl]diazenyl]benzenesulfonate.

Which grade and pack sizes of Ethyl orange sodium salt can I order?

We supply Ethyl orange sodium salt, in 10 g, 25 g, 100 g, 1 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Ethyl orange sodium salt?

Yes. Every lot of Ethyl orange sodium salt 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 Ethyl orange sodium salt be shipped internationally?

Yes. Ethyl orange sodium salt 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.