C.I. Solvent Red 26

HCID 62541
NotesReactions
Substructure searchFind similar structures

Basic information

CAS
4477-79-6
Standard SMILES
Cc1ccccc1N=Nc1cc(C)c(N=Nc2c(O)ccc3ccccc23)cc1C
InChIKey
NRBKWAQSLYBVSG-UHFFFAOYSA-N
Molecular formula
C25H22N4O
Average molar mass
394.5 g/mol
Monoisotopic mass
394.17936132

Overview

See also: Red Dye (annotation moved to).

Names & identifiers

Preferred name
C.I. Solvent Red 26
IUPAC
1-[[2,5-dimethyl-4-[(2-methylphenyl)diazenyl]phenyl]diazenyl]naphthalen-2-ol
English name
Solvent Red 26
Molecular formula
C25H22N4O
Molecular weight
394.47

Names & synonyms

Solvent Red 26C.I. Solvent Red 26DTXSID50503951-[[2,5-Dimethyl-4-[(2-methylphenyl)azo]phenyl]azo]-2-naphthol2-Naphthalenol, 1-((2,5-dimethyl-4-((2-methylphenyl)azo)phenyl)azo)-2-Naphthalenol, 1-(2-(2,5-dimethyl-4-(2-(2-methylphenyl)diazenyl)phenyl)diazenyl)-1-((2,5-Dimethyl-4-((2-methylphenyl)azo)phenyl)azo)-2-naphthol2-Naphthalenol, 1-[[2,5-dimethyl-4-[(2-methylphenyl)azo]phenyl]azo]-2-Naphthalenol, 1-[2-[2,5-dimethyl-4-[2-(2-methylphenyl)diazenyl]phenyl]diazenyl]-Oil Red N1700Oil Red Z1700RefChem:572833
Show more names
OIL REDCI 26120Red GPDabcolredobCI NO 26120OIL RED EGNC.I.Solvent Red 26Transparent red 3BROil red EGN (C.I. 26120)
DTXCID6029416C.I. Solvent Red 26 (8CI)1((2,5Dimethyl4((2methylphenyl)azo)phenyl)azo)2naphthol2Naphthalenol, 1((2,5dimethyl4((2methylphenyl)azo)phenyl)azo)2-Naphthalenol, 1-2,5-dimethyl-4-(2-methylphenyl)azophenylazo-2Naphthalenol, 1(2(2,5dimethyl4(2(2methylphenyl)diazenyl)phenyl)diazenyl)224-757-34477-79-6

Database identifiers

CAS
4477-79-6
PubChem CID
62541
DTXSID
DTXSID5050395
ChEMBL
CHEMBL1966947
UNII
KR6F64FLX3
EC Number
224-757-3
Nikkaji
J36.918G

Properties

Computed structural properties

XLogP
7.5
Topological polar surface area
69.7 Ų
Hydrogen bond donors
1
Hydrogen bond acceptors
5
Rotatable bonds
4
Heavy atoms
30

Experimental & physicochemical properties

Chemical ClassesDyes -> Azo Dyes
Physical DescriptionSolid; [Sigma-Aldrich MSDS]

Physicochemical properties

Melting point
130 °C · 130 °C (dec.)(lit.)
Boiling point
628.8 · 628.8±55.0 °C(Predicted)
Density
1.18 · 1.18±0.1 g/cm3(Predicted)
storage temp.
room temp
pka
13.52 · 13.52±0.50(Predicted)
Colour Index
26120 · 26120

Safety & regulation

GHS classification

GHS Classification · 6 items

This chemical does not meet GHS hazard criteria for 6.4% (5 of 78) of reports.

Warning

H315 (75.6%): Causes skin irritation [Warning Skin corrosion/irritation]

P203, P261, P264, P264+P265, P271, P272, P280, P302+P352, P304+P340, P305+P351+P338, P318, P319, P321, P332+P317, P333+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 78 reports by companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Warning

Hazard information

Regulatory Information · 2 items

Chemical: 2-Naphthalenol, 1-[[2,5-dimethyl-4-[(2-methylphenyl)azo]phenyl]azo]-

2-Naphthalenol, 1-2,5-dimethyl-4-(2-methylphenyl)azophenylazo-: Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.

Other Safety InformationIMAP assessments - Dyes that could release selected carcinogenic amines (listed on AICS): Human health tier II assessment
Hazards SummaryMay cause irritation; [Sigma-Aldrich MSDS]
Hazard Classes and Categories · 2 items

Skin Irrit. 2 (75.6%)

Carcinogenicity - category 2

Safety data

PPE
dust mask type N95 (US), Eyeshields, Gloves
wgk
3
tsca
TSCA listed
risk_code
36/37/38
Signal word
Warning
Symbol(GHS)
GHS08

Chemistry & industry

Uses & manufacturing

UsesPermitted for use as an inert ingredient in non-food pesticide products; [EPA]
General Manufacturing Information2-Naphthalenol, 1-[2-[2,5-dimethyl-4-[2-(2-methylphenyl)diazenyl]phenyl]diazenyl]-: ACTIVE

Applications

UsesOil Red EGN has been used to stain lipid droplets accumulated in cell during adipogenesis.

Preparation methods

PreparationO-Methylaniline diazotization, and 2,5-Dimethylbenzenamine coupling, product to diazotization, and Naphthalen-2-ol coupling.

Upstream & downstream products

Suppliers42 total

湖北永阔科技有限公司027-59223108 15972152991 · [email protected]
湖北万得化工有限公司15377098680 15377098680 · [email protected]
上海麦克林生化科技股份有限公司021-50706066 15221275939 · [email protected]
湖北盛明安化工有限公司13928406992 · [email protected]
陕西缔都化学有限公司029-029-81123119 17391733320 · [email protected]

Related reactions

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Compound notes

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