Sudan I

Name: Sudan I
Brand: Vaqora Chemicals
SKU: VQ-000711

About Sudan I

Sudan I (CAS 842-07-9) is a biological stain offered by Vaqora Chemicals in Microscopy grade. Formula C16H12N2O, molecular weight 248.28 g/mol. Systematically, it is named 1-phenyldiazenylnaphthalen-2-ol. It is also known as 1-Phenylazo-2-naphthol or Solvent Yellow 14.

The product is provided as a powder. Reported physical data include a melting point of 131-133 °C. Store in a tightly closed container in a cool, dry and well-ventilated place. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

It is commonly used for histology and cytology staining, microscopy and clinical laboratories. Buyers come mainly from academic and industrial research, diagnostics and biotechnology and textiles and dyeing.

Standard pack sizes are 10 g, 25 g, 100 g and 1 kg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Histology & cytology staining
Microscopy
Clinical laboratories

Industries

Specifications & identifiers

Chemical identifiers
Product name	Sudan I
Catalogue No.	VQ-000711
CAS Number	842-07-9
IUPAC name	1-phenyldiazenylnaphthalen-2-ol
Molecular formula	C₁₆H₁₂N₂O
Molecular weight	248.28 g/mol
Exact mass	248.095
Grade	Microscopy
HSN code	34029000
InChIKey	MRQIXHXHHPWVIL-UHFFFAOYSA-N
SMILES	C1=CC=C(C=C1)N=NC2=C(C=CC3=CC=CC=C32)O
PubChem CID	13297

Physical properties
Physical form	Powder
Appearance	Powder
Melting point	131-133 °C
LogP (XLogP3)	4.1
H-bond donors / acceptors	1 / 3
TPSA	45 Å²
Synonyms	1-Phenylazo-2-naphthol, Solvent Yellow 14, C.I. Solvent Yellow 14, 1-(Phenylazo)-2-naphthalenol, Sudan Orange RA, Grasal Orange, Calcogas M, Orange Pel, Ceres Orange R, Soudan I, Sudan Orange R, Fat Orange I

Safety & hazard information (GHS)

Harmful / irritant

Health hazard

Signal word: Warning

Hazard statements

H317May cause an allergic skin reaction
H341Suspected of causing genetic defects
H351Suspected of causing cancer
H413May cause long lasting harmful effects to aquatic life

Precautionary statements: P203, P261, P272, P273, P280, P302 + P352, P318, P321, P333 + P317, P362 + P364, 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 I?

The CAS Registry Number of Sudan I is 842-07-9. It is also known as 1-Phenylazo-2-naphthol, Solvent Yellow 14, C.I. Solvent Yellow 14.

What is the molecular formula and molecular weight of Sudan I?

Sudan I has the molecular formula C16H12N2O and a molecular weight of 248.28 g/mol. Its IUPAC name is 1-phenyldiazenylnaphthalen-2-ol.

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

We supply Sudan I in Microscopy grade, in 10 g, 25 g, 100 g, 1 kg, 4 x 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Sudan I?

Yes. Every lot of Sudan I 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 I be shipped internationally?

Yes. Sudan I 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.