Piper Red

Base Information

• Chemical Name: Piper Red
• CAS No.: 6358-87-8
• Deprecated CAS: 136825-56-4,137911-33-2,97890-20-5
• Molecular Formula: C₃₆H₂₈Cl₂N₈O₆
• Molecular Weight: 739.574
• European Community (EC) Number: 228-788-3
• NSC Number: 16093
• DSSTox Substance ID: DTXSID20863750
• Nikkaji Number: J35.632H
• Mol file: 6358-87-8.mol

Synonyms:6358-87-8;Vulcan Fast Red B;Benzidine Red;Pyrazolone Red;Piper Red;Irgaplast Red P;Silotermo Red B;Pyrazolone Red Y;Rubber Fast Red B;Sanyo Pyrazolone Red;Rubber Fast Red BA;Vulcan Fast Red BA;Vulcan Fast Red BN;Silogomma Fast Red B;Dainichi Fast Red BL;Irgalite Fast Red PY;Symuler Fast Pyrazolone Red B;Pyrazolone Red B Toner;Vulcan Fast Red BA-ND;Plasticone Red 10457;Symuler Fast Pyrazolone Red BE;C.I. 21120;Pyrazolone Red (Yellowish) R-6258;C.I.21120;Diethyl 4,4'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4,5-dihydro-5-oxo-1-phenyl-1H-pyrazole-3-carboxylate];ethyl 4-[[2-chloro-4-[3-chloro-4-[(3-ethoxycarbonyl-5-oxo-1-phenyl-4H-pyrazol-4-yl)diazenyl]phenyl]phenyl]diazenyl]-5-oxo-1-phenyl-4H-pyrazole-3-carboxylate;EINECS 228-788-3;NSC 16093;Diethyl 4,4'-((3,3'-dichloro(1,1'-biphenyl)-4,4'-diyl)bis(azo))bis(4,5-dihydro-5-oxo-1-phenyl-1H-pyrazole-3-carboxylate);EC 228-788-3;1H-Pyrazole-3-carboxylic acid, 4,4'-((3,3'-dichloro(1,1'-biphenyl)-4,4'-diyl)bis(azo))bis(4,5-dihydro-5-oxo-1-phenyl-, diethyl ester;1H-Pyrazole-3-carboxylic acid,4,4'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4,5-dihydro-5-oxo-1-phenyl-, diethyl ester;C36H28Cl2N8O6;1H-Pyrazole-3-carboxylic acid, 4,4'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4,5-dihydro-5-oxo-1-phenyl-, diethyl ester;N-BUTYLCINNAMATE;SCHEMBL306680;UNII-S92898V7TN;DTXSID20863750;NSC16093;C36-H28-Cl2-N8-O6;1H-Pyrazole-3-carboxylic acid, 4,4'-[(3,3'-dichloro[1,1'- biphenyl]-4,4'-diyl)bis(azo)]bis[4,5-dihydro-5-oxo -1-phenyl-, diethyl ester;W-110111;1H-Pyrazole-3-carboxylic acid,4'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4,5-dihydro-5-oxo-1-phenyl-, diethyl ester

Chemical Property of Piper Red

Chemical Property:

• Appearance/Colour: brownish powder
• Vapor Pressure: 5.86E-27mmHg at 25°C
• Melting Point: 173 - 178oC
• Refractive Index: 1.69
• Boiling Point: 819.507 °C at 760 mmHg
• Flash Point: 449.422 °C
• PSA: 167.38000
• Density: 1.455 g/cm³
• LogP: 6.49800
• XLogP3: 8.2
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 12
• Rotatable Bond Count: 13
• Exact Mass: 738.1508860
• Heavy Atom Count: 52
• Complexity: 1340

Purity/Quality:

99.9% ^*data from raw suppliers

PIGMENT RED 38 95.00% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: CCOC(=O)C1=NN(C(=O)C1N=NC2=C(C=C(C=C2)C3=CC(=C(C=C3)N=NC4C(=NN(C4=O)C5=CC=CC=C5)C(=O)OCC)Cl)Cl)C6=CC=CC=C6

Technology Process of Piper Red

There total 1 articles about Piper Red 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:

3,3'-dichlorobenzidine (91-94-1) + 2,4-dihydro-2-phenyl-5-ethoxycarbonyl-3H-pyrazol-3-one (89-33-8) → C36H28Cl2N8O6 (6358-87-8)

Guidance literature:

3,3'-dichlorobenzidine; With hydrogenchloride; In water; at 0 ℃; for 1h;

With sodium nitrite; In water; for 1h;

2,4-dihydro-2-phenyl-5-ethoxycarbonyl-3H-pyrazol-3-one; Temperature; Further stages;

upstream raw materials:

3,3'-dichlorobenzidine

2,4-dihydro-2-phenyl-5-ethoxycarbonyl-3H-pyrazol-3-one

Refernces