Piper Red
Pigment Red 38
CAS: 6358-87-8
Molecular Formula: C36H28Cl2N8O6
Piper Red - Names and Identifiers
| Name | Pigment Red 38 |
| Synonyms | Piper Red C.I. 21120 Pigment Red 38 -PIGMENT RED 38 C.I. Pigment Red 38 C.I. Pigment Red 38 (VAN) (8CI) 1h-pyrazole-3-carboxylic acid, 4,4'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bi DIETHYL 4,4'-(3,3'-DICHLORO1,1'-BIPHENYL-4,4'-DIYL)BIS(AZO)BIS4,5-DIHYDRO-5-OXO-1-PHENYL-1H-PYRAZOLE-3-CARBOXYLATE 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] 1H-Pyrazole-3-carboxylic acid, 4,4-(3,3-dichloro1,1-biphenyl-4,4-diyl)bis(azo)bis4,5-dihydro-5-oxo-1-phenyl-, diethyl ester diethyl 4,4'-[(3,3'-dichlorobiphenyl-4,4'-diyl)di(E)diazene-2,1-diyl]bis(5-oxo-1-phenyl-4,5-dihydro-1H-pyrazole-3-carboxylate) ethyl 4-[2-chloro-4-[3-chloro-4-[(3-ethoxycarbonyl-5-oxo-1-phenyl-4H-pyrazol-4-yl)azo]phenyl]phenyl]azo-5-oxo-1-phenyl-4H-pyrazole-3-carboxylate |
| CAS | 6358-87-8 |
| EINECS | 228-788-3 |
| InChI | InChI=1/C36H28Cl2N8O6/c1-3-51-35(49)31-29(33(47)45(43-31)23-11-7-5-8-12-23)41-39-27-17-15-21(19-25(27)37)22-16-18-28(26(38)20-22)40-42-30-32(36(50)52-4-2)44-46(34(30)48)24-13-9-6-10-14-24/h5-20,29-30H,3-4H2,1-2H3 |
Piper Red - Physico-chemical Properties
| Molecular Formula | C36H28Cl2N8O6 |
| Molar Mass | 739.57 |
| Density | 1.414g/cm3 at 20.18℃ |
| Boling Point | 819.5°C at 760 mmHg |
| Flash Point | 449.4°C |
| Vapor Presure | 0Pa at 25℃ |
| Appearance | Solid:nanomaterial |
| Refractive Index | 1.69 |
| Physical and Chemical Properties | solubility: insoluble in water, very low solubility in ethanol. hue or color: Red relative density: 1.35-1.58 Bulk density/(lb/gal):11.2-13.1 melting point/℃:287 average particle size/μm:0.09 particle shape: Cube specific surface area/(m2/g):45 pH value/(10% slurry) 5.5-6.5 oil absorption/(g/100g):40-63 hiding power: translucent diffraction curve:  reflex curve:  |
| Use | This pigment gives a neutral red color, which is mainly used for the coloring of rubber and plastic, compared with C.I. Pigment Red 37 is more resistant to solvents, is resistant to vulcanization and migration, and the colored products are resistant to washing, soap, detergent and organic solvents (including gasoline); It shows high coloring power in PVC, and is better than C.I. Pigment Red 37 is more light resistant, 1/3SD up to grade 6, heat resistant to 180 ℃; Can also be used for plastic (LDPE,HDPE) coloring, no dimensional deformation; Due to good insulation, can be used for PVC cable insulation coloring. There are 18 kinds of commercial dosage forms of the pigment. |
Piper Red - Reference Information
| LogP | 0.88 at 23℃ and pH7 |
| EPA chemical substance information | information is provided by: ofmpeb.epa.gov (external link) |
Last Update：2024-04-10 22:30:50
