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103624

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
PubChem Substance ID:
24846615
UNSPSC Code:
12171500
Colour Index Number:
12055
NACRES:
NA.47
EC Number:
212-668-2
MDL number:
MFCD00003911
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form

powder

Quality Segment

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

εmax

≥6000 at 299-319 nm in ethanol at 0.01 g/L (2nd)

λmax

≥11000 at 461-491 nm in ethanol at 0.01 g/L

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

Oc1ccc2ccccc2c1N=Nc3ccccc3

InChI

1S/C16H12N2O/c19-15-11-10-12-6-4-5-9-14(12)16(15)18-17-13-7-2-1-3-8-13/h1-11,19H

InChI key

MRQIXHXHHPWVIL-UHFFFAOYSA-N

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.

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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

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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