Sudan Orange G

Name: Sudan Orange G
Brand: Vaqora Chemicals
SKU: VQ-038901

About Sudan Orange G

Vaqora Chemicals supplies Sudan Orange G, an API reference standard registered under CAS number 2051-85-6. With the molecular formula C12H10N2O2, it has a molar mass of 214.22 g/mol. Its systematic (IUPAC) name is 4-phenyldiazenylbenzene-1,3-diol. Alternative names: 2,4-Dihydroxyazobenzene and 1,3-Benzenediol, 4-(phenylazo)-.

The product is provided as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

As a reference sample of the parent drug substance, it is used for identification, assay and impurity-profiling work during analytical method development, validation (AMV) and routine QC. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Sudan Orange G is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Identification & assay
Method development & validation
QC reference material

Industries

Specifications & identifiers

Chemical identifiers
Product name	Sudan Orange G
Catalogue No.	VQ-038901
CAS Number	2051-85-6
IUPAC name	4-phenyldiazenylbenzene-1,3-diol
Molecular formula	C₁₂H₁₀N₂O₂
Molecular weight	214.22 g/mol
Exact mass	214.0742
Grade	Reference Standard
HSN code	38229090
InChIKey	BPTKLSBRRJFNHJ-UHFFFAOYSA-N
SMILES	C1=CC=C(C=C1)N=NC2=C(C=C(C=C2)O)O
PubChem CID	16325

Physical properties
Physical form	Solid
LogP (XLogP3)	3
H-bond donors / acceptors	2 / 4
TPSA	65.2 Å²
Synonyms	2,4-Dihydroxyazobenzene, 1,3-Benzenediol, 4-(phenylazo)-, 1,3-Benzenediol, 4-(2-phenyldiazenyl)-, Solvent orange 1, Ceres Orange G, Ceres Orange GN, Sudan G, Fat Orange A, Benzeneazoresorcinol, C.I. Solvent Orange 1, Sudan Yellow AR, Resinol Orange G

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 Sudan Orange G?

The CAS Registry Number of Sudan Orange G is 2051-85-6. It is also known as 2,4-Dihydroxyazobenzene, 1,3-Benzenediol, 4-(phenylazo)-, 1,3-Benzenediol, 4-(2-phenyldiazenyl)-.

What is the molecular formula and molecular weight of Sudan Orange G?

Sudan Orange G has the molecular formula C12H10N2O2 and a molecular weight of 214.22 g/mol. Its IUPAC name is 4-phenyldiazenylbenzene-1,3-diol.

Which grade and pack sizes of Sudan Orange G can I order?

We supply Sudan Orange G 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 Sudan Orange G?

Yes. Every lot of Sudan Orange G 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 Sudan Orange G be shipped internationally?

Yes. Sudan Orange G 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.