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Stains, Fluorescent Dyes & Histology Reagents

Sudan yellow

MicroscopyAvailable on request

Order Sudan yellow (CAS 2481-94-9) online at Zemixal. Request a quote with price, lead time and documents. Catalogue no. ZX-000714.

Pack sizes
Sudan yellow chemical structure
CAS number2481-94-9
FormulaC16H19N3
Molar mass253.34 g/mol
Physical formSolid
HS code29270090
InChIKeySJJISKLXUJVZOA-UHFFFAOYSA-N
IUPAC nameN,N-diethyl-4-phenyldiazenylaniline

About Sudan yellow

Zemixal supplies Sudan yellow within its laboratory Chemicals & Reagents portfolio. Identity at a glance (Microscopy): CAS 2481-94-9, formula C16H19N3 and molar mass 253.34 g/mol. Typical appearance is yellow solid.

Typical applications

  • Histology & cytology staining
  • Microscopy
  • Clinical laboratories
  • Dyes & pigments manufacture

Handling and storage

It carries the GHS signal word Warning (H302, H312, H315 and H317), so wear gloves and eye protection and work with good ventilation.

Order it in 5 g, 25 g, 500 g, 5 x 1 kg and 4 x 25 kg packs or ask for a bulk quotation. You receive a batch certificate of analysis and a 16-section SDS with each order. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Typical uses

  • Histology & cytology staining
  • Microscopy
  • Clinical laboratories
  • Dyes & pigments manufacture

Applications

Specifications and identifiers

Specifications of Sudan yellow
Product nameSudan yellow
Catalogue numberZX-000714
CAS number2481-94-9
IUPAC nameN,N-diethyl-4-phenyldiazenylaniline
Molecular formulaC16H19N3
Molar mass253.34 g/mol
Exact mass253.1579
GradeMicroscopy
Physical formSolid
AppearanceYellow solid
XLogP35.3
H-bond donors / acceptors0 / 3
Topological polar surface area28 Ų
HS code29270090
InChIKeySJJISKLXUJVZOA-UHFFFAOYSA-N
SMILESCCN(CC)C1=CC=C(C=C1)N=NC2=CC=CC=C2
PubChem CID17204
Synonyms4-(Diethylamino)azobenzene, Solvent Yellow 56, Diethyl Yellow, 4-Diethylaminoazobenzene, Fat Yellow GGN, p-(Diethylamino)azobenzene, N,N-Diethyl-4-(phenylazo)aniline, Diethylaminoazobenzene, N,N-Diethyl-4-aminoazobenzene, 4-Phenylazo-N,N-diethylaniline, N,N-Diethyl-4-(phenylazo)benzenamine, Benzenamine, N,N-diethyl-4-(phenylazo)-

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful
GHS08 Health hazard
Health hazard

Signal word Warning

  • H302Harmful if swallowed
  • H312Harmful in contact with skin
  • H315Causes skin irritation
  • H317May cause an allergic skin reaction
  • H319Causes serious eye irritation
  • H332Harmful if inhaled
  • H335May cause respiratory irritation
  • H351Suspected of causing cancer
  • H412Harmful to aquatic life with long lasting effects

Precautionary statements P203, P261, P264, P264 + P265, P270, P271, P272, P273, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P317, P318, P319, P321, P330, P332 + P317, P333 + P317, P337 + P317, P362 + P364, P403 + P233, P405

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Sudan yellow
5 gQuoted on request
25 gQuoted on request
500 gQuoted on request
5 x 1 kgQuoted on request
4 x 25 kgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Sudan yellow

Which CAS number identifies Sudan yellow?
Sudan yellow is registered under CAS 2481-94-9. You may also see it listed as 4-(Diethylamino)azobenzene, Solvent Yellow 56, Diethyl Yellow. Our catalogue number for this item is ZX-000714.
What are the formula and molar mass of Sudan yellow?
For Sudan yellow, its formula is C16H19N3 and its molar mass is 253.34 g/mol. The systematic (IUPAC) name is N,N-diethyl-4-phenyldiazenylaniline. InChIKey SJJISKLXUJVZOA-UHFFFAOYSA-N lets you match it in any structure database.
What grade and pack sizes are available for Sudan yellow?
This listing is Microscopy grade. Standard packs are 5 g, 25 g, 500 g, 5 x 1 kg, 4 x 25 kg. Larger quantities and custom packing can be quoted on request.
Which documents come with Sudan yellow?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Sudan yellow to my country?
Yes. Because Sudan yellow is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.
Sunset yellow
CAS
2783-94-0
Formula
C16H10N2Na2O7S2
MW
452.4 g/mol
ZX-000716

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