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Piper Red

Pigment Red 38

CAS: 6358-87-8

Molecular Formula: C36H28Cl2N8O6

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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 FormulaC36H28Cl2N8O6
Molar Mass739.57
Density1.414g/cm3 at 20.18℃
Boling Point819.5°C at 760 mmHg
Flash Point449.4°C
Vapor Presure0Pa at 25℃
AppearanceSolid:nanomaterial
Refractive Index1.69
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

LogP0.88 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
Piper Red
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CAS: 6358-87-8
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MedChemExpress (MCE)
Spot supply
Product Name: C.I. Pigment red 38 Visit Supplier Webpage Request for quotation
CAS: 6358-87-8
Tel: 609-228-6898
Email: sales@medchemexpress.com
　　　　 tech@medchemexpress.com
Mobile: 609-228-6898
SKYRUN INDUSTRIAL CO.,LTD
Spot supply
Product Name: PIGMENT RED 38 Visit Supplier Webpage Request for quotation
CAS: 6538-87-8
Tel: +86 0571-86722205
Email: sales@chinaskyrun.com
Mobile: +8618958170122
QQ: 2531159185 Click to send a QQ messageSend QQ message
Wechat: chinaskyrun
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Piper Red
Acid modified starch
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