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103624

Sigma-Aldrich

Sudan I

Dye content ≥95 %

Synonym(s):

1-Phenylazo-2-naphthol, Solvent Yellow 14

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About This Item

Linear Formula:
C6H5N=NC10H6OH
CAS Number:
842-07-9
Molecular Weight:
248.28
Colour Index Number:
12055
EC Number:
212-668-2
MDL number:
MFCD00003911
UNSPSC Code:
12171500
PubChem Substance ID:
24846615
NACRES:
NA.47

form

powder

Quality Level

200

composition

Dye content, ≥95%

technique(s)

microbe id | staining: suitable

color

orange to very dark orange

pH

10.2 (26 °C)

mp

131-133 °C (lit.)

solubility

chloroform: 1 mg/mL, clear to very slightly hazy, orange

density

0.32 g/cm3 at 20 °C ((68 °F) - OECD Test Guideline 109)

ε (extinction coefficient)

≥30000 at 223-233 nm in ethanol at 0.01 g/L

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Application

Sudan I is a lysochrome, a diazo-conjugate dye, used as an industrial dye, added to products such as waxes, oils, petrol, solvents and polishes. Sudan I is a category 3 carcinogen previously, now banned, used to color certain foodstuffs.

pictograms

Health hazardExclamation mark
GHS08,GHS07

signalword

Warning

Hazard Classifications

Aquatic Chronic 4 - Carc. 2 - Muta. 2 - Skin Sens. 1

Storage Class

11 - Combustible Solids

wgk_germany

WGK 2

flash_point_f

>554.0 °F - Pensky-Martens closed cup

flash_point_c

> 290 °C - Pensky-Martens closed cup

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Certificates of Analysis (COA)

Lot/Batch Number
BCCN0908
BCCL2216
BCCL1053
BCCK9484
BCCG9275

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T Philip et al.
Journal of chromatography, 435(1), 113-126 (1988-01-01)
The adsorption and partition properties of several fatty acid esters of capsanthin, capsorubin, beta-cryptoxanthin, lutein, violaxanthin and beta-citraurin isolated from fruits were studied by normal-phase (silica) and reversed-phase (octadecylsilane) liquid chromatography using Sudan 1 as internal standard. The separation on
Xinying Ma et al.
Food chemistry, 138(2-3), 739-744 (2013-02-16)
This paper describes a novel electrochemical method for the determination of Sudan I in food samples based on the electrochemical catalytic activity of graphene modified glassy carbon electrode (GMGCE) and the enhancement effect of an anionic surfactant: sodium dodecyl sulphonate
Chuande Zhao et al.
Journal of chromatography. A, 1217(45), 6995-7002 (2010-10-01)
A novel molecularly imprinted polymer was synthesized with attapulgite employed as matrix, which is simple and time-saving. In this method, sudan I was chosen as template molecule, 2-vinylpyridine as functional monomer and ethylene glycol dimethacrylate as cross-linking agent, respectively. The
Shizhen Chen et al.
Talanta, 84(2), 451-456 (2011-03-08)
An electrochemical strategy on the basis of rationally designed molecularly imprinted sol-gel polymer embedded with gold nanoparticles (AuNPs) is developed for the specific and sensitive determination of Sudan I. The rationally designed sensing Sudan I imprinted sol-gel was prepared by
Václav Martínek et al.
Toxicological sciences : an official journal of the Society of Toxicology, 117(2), 359-374 (2010-07-10)
Free radicals generated during peroxidase-catalyzed oxidation of two xenobiotics, carcinogenic Sudan I and an anticancer agent ellipticine, easily attack unmodified proteins but not glycoproteins. A significant inverse correlation between the extent of glycosylation of proteins and the degree of binding
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