C.I. Solvent Red 2

Base Information

• Chemical Name: C.I. Solvent Red 2
• CAS No.: 5098-94-2
• Molecular Formula: C17H14 N2 O
• Molecular Weight: 262.311
• Hs Code.: 2927000090
• European Community (EC) Number: 225-818-7
• UNII: 151FHJ5BHJ
• DSSTox Substance ID: DTXSID8041741,DTXSID40859897
• Nikkaji Number: J34.080D
• Wikidata: Q27251662
• Mol file: 5098-94-2.mol

Synonyms:C.I. Solvent Red 2;5098-94-2;solvent red 2;4-[(2-methylphenyl)azo]naphthol;4-[(2-methylphenyl)diazenyl]naphthalen-1-ol;UNII-151FHJ5BHJ;151FHJ5BHJ;1-Naphthalenol, 4-((2-methylphenyl)azo)-;1-Naphthalenol, 4-[(2-methylphenyl)azo]-;1-Naphthalenol, 4-(2-(2-methylphenyl)diazenyl)-;EINECS 225-818-7;4-((2-Methylphenyl)azo)naphthol;o-tolylazo-4-naphthol;FAT BROWN S;SUDAN BROWN 3B;FAT BROWN 3BR;FAT BROWN 3B;(4E)-4-(o-tolylhydrazono)naphthalen-1-one;WAXOLINE MAHOGANY A;DTXSID8041741;SCHEMBL11955355;Solvent red 2,ci no 12005;DTXSID40859897;AKOS003612926;1-O-METHYLPHENYLAZO-4-NAPHTHOL;1-NAPHTHOL, 4-(O-TOLYLAZO)-;J34.080D;C.I.12005;C.I. 12005;4-((2-METHYLPHENYL)AZO)-1-NAPHTHOL;4-((E)-(2-METHYLPHENYL)DIAZENYL)-1-NAPHTHOL;Q27251662;1-NAPHTHALENOL, 4-((E)-2-(2-METHYLPHENYL)DIAZENYL)-;(4E)-4-((2-METHYLPHENYL)HYDRAZINYLIDENE)NAPHTHALEN-1-ONE

Chemical Property of C.I. Solvent Red 2

Chemical Property:

• Vapor Pressure: 0mmHg at 25°C
• Boiling Point: 412.8°Cat760mmHg
• PKA: 8.54±0.40(Predicted)
• Flash Point: 203.4°C
• PSA: 44.95000
• Density: 1.15g/cm³
• LogP: 5.26920
• XLogP3: 5
• Hydrogen Bond Donor Count: 1
• Hydrogen Bond Acceptor Count: 3
• Rotatable Bond Count: 2
• Exact Mass: 262.110613074
• Heavy Atom Count: 20
• Complexity: 344

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: CC1=CC=CC=C1N=NC2=CC=C(C3=CC=CC=C32)O

Technology Process of C.I. Solvent Red 2

There total 6 articles about C.I. Solvent Red 2 which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

α-naphthol (90-15-3) + C7H7N2(1+)*IO4(1-) → 2-o-Tolylazo-[1]naphthol (5577-38-8) + 1-o-tolylazo-4-naphthol (5098-94-2)

Guidance literature:

In neat (no solvent); at 20 ℃;

DOI:10.4314/bcse.v27i3.13

Reference yield:

α-naphthol (90-15-3) + 2-methylbenzene diazonium (17333-74-3) → 2-o-Tolylazo-[1]naphthol (5577-38-8) + 1-o-tolylazo-4-naphthol (5098-94-2)

Guidance literature:

α-naphthol; With sodium hydroxide; In neat (no solvent); at 20 ℃; Green chemistry;

2-methylbenzene diazonium; In neat (no solvent); at 20 ℃; for 0.05h; Overall yield = 91 %; Green chemistry;

DOI:10.1039/c4ra12604a

Reference yield:

o-toluidine (95-53-4) → 2-o-Tolylazo-[1]naphthol (5577-38-8) + 1-o-tolylazo-4-naphthol (5098-94-2)

Guidance literature:

Multi-step reaction with 2 steps

1: sodium nitrite; water / neat (no solvent) / 20 °C

2: neat (no solvent) / 20 °C

With water; sodium nitrite; In neat (no solvent);

DOI:10.4314/bcse.v27i3.13

upstream raw materials:

α-naphthol

[1,4]naphthoquinone

o-toluidine

2-methylbenzene diazonium

Downstream raw materials:

(4-methoxy-[1]naphthyl)-o-tolyl-diazene

1-hydroxy-2,4-dinitronaphthalene

Refernces

• 1、 Bamoniri, Abdolhamid,Pourali, Ali Reza,Nazifi, S. Mohamad Reza. "Facile synthesis of 1-naphthol azo dyes with nano Sio2/Hio4 under solvent-free conditions". . p. 439 - 445. Retrieved 2013/12/04.