Zurück
HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HCID 7072Erstellt: 26. Oktober 2026

3,3'-Dimethylbiphenyl-4,4'-diyldiisocyanat

TODI · nacconate200 · 3,3'-DIMETHYL-4 · -diyl diisocyanate · 3,3'-Dimethyl-4,4'-b · tolidinediisocyanate · bitoluenediisocyanate · bitolylenediisocyanate

https://huagongshe.com/de/chemical/7072

Molekülstruktur von 3,3'-Dimethylbiphenyl-4,4'-diyldiisocyanat

Identifikatoren & physikalische Daten

CAS No.91-97-4
SummenformelC16H12N2O2
Durchschnittliche Molmasse264,28 g/mol
Monoisotopische Masse264,08987762 g/mol
SMILESCc1cc(-c2ccc(N=C=O)c(C)c2)ccc1N=C=O
InChIKeyICLCCFKUSALICQ-UHFFFAOYSA-N
PubChem CID7072
EC No.202-112-7
DTXSIDDTXSID7041463
Lokaler Name3,3'-Dimethylbiphenyl-4,4'-diyldiisocyanat

Chemische & physikalische Eigenschaften

XLogP5,9
Polarare Oberfläche (TPSA)58,9
H-Brücken-Donoren0
H-Brücken-Akzeptoren4
Frei drehbare Bindungen3
Schwere Atome20
Formalladung0
Komplexität384
Endocrine DisruptorsPotential endocrine disrupting compound
Food Contact SubstancesFCS -> FDA Cumulative Estimated Daily Intake (CEDI)FCS -> FDA Inventory of Food Contact Substances Listed in 21 CFR
Schmelzpunkt70-72°C
Siedepunkt195-197°C (667 Pa)
Dichte1.197 (80°C)
Dampfdruck0.003Pa at 25℃
Brechungsindex1.5800 (estimate)
Flammpunkt218°C
Lagerbedingungen0-10°C
Löslichkeitsoluble in Toluene594.08μg/L at 25℃
Aggregatzustandpellet
FarbeWhite to Almost white
LogP (Verteilungskoeffizient)6.052 at 25℃
CAS Datenbank91-97-4(CAS DataBase Reference)
EPA chemische Informationen3,3'-Dimethyl-4,4'-diphenylene diisocyanate (91-97-4)

Sicherheit & Vorschriften

GHS-EinstufungDangerH317: May cause an allergic skin reaction [Warning Sensitization, Skin]P203, P233, P260, P261, P271, P272, P280, P284, P302+P352, P304+P340, P318, P321, P333+P317, P342+P316, P362+P364, P403, P405, and P501 (click each P-code to see the statement)H317 (98.7%): May cause an allergic skin reaction [Warning Sensitization, Skin]P233, P260, P261, P271, P272, P273, P280, P284, P302+P352, P304+P340, P317, P321, P333+P317, P342+P316, P362+P364, P391, P403, and P501 (click each P-code to see the statement)
Regulatorische InformationenChemical: 1,1'-Biphenyl, 4,4'-diisocyanato-3,3'-dimethyl-Hazard Traits - Respiratory ToxicityStatus: Active Update: 11-01-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/10067Restricted substance: 3,3'-dimethylbiphenyl-4,4'-diyl diisocyanate
DOT-KennzeichnungPoison
BrandgefahrenExcerpt from ERG Guide 156 [Substances - Toxic and/or Corrosive (Combustible / Water-Sensitive)]:
GesundheitsgefahrenExcerpt from ERG Guide 156 [Substances - Toxic and/or Corrosive (Combustible / Water-Sensitive)]:
Reaktive GruppeIsocyanates and Isothiocyanates
Reactivity ProfileIsocyanates and thioisocyanates, such as 3,3'-DIMETHYL-4,4'-DIPHENYLENE DIISOCYANATE, are incompatible with many classes of compounds, reacting exothermically to release toxic gases. Reactions with amines, aldehydes, alcohols, alkali metals, ketones, mercaptans, strong oxidizers, hydrides, phenols, and peroxides can cause vigorous releases of heat. Acids and bases initiate polymerization reactions in these materials. Some isocyanates react with water to form amines and liberate carbon dioxide. Base-catalysed reactions of isocyanates with alcohols should be carried out in inert solvents. Such reactions in the absence of solvents often occur with explosive violence, [Wischmeyer(1969)].
Air and Water ReactionsNo rapid reaction with air. No rapid reaction with water.
Hazard Classes and CategoriesSkin Sens. 1 (98.7%)Respiratory sensitization - Category 1Carc. 2
BrandbekämpfungExcerpt from ERG Guide 156 [Substances - Toxic and/or Corrosive (Combustible / Water-Sensitive)]:
Erste HilfeExcerpt from ERG Guide 156 [Substances - Toxic and/or Corrosive (Combustible / Water-Sensitive)]:
Freisetung ohne BrandExcerpt from ERG Guide 156 [Substances - Toxic and/or Corrosive (Combustible / Water-Sensitive)]:
Isolation and EvacuationExcerpt from ERG Guide 156 [Substances - Toxic and/or Corrosive (Combustible / Water-Sensitive)]:
Personal Protective Equipment (PPE)Excerpt from ERG Guide 156 [Substances - Toxic and/or Corrosive (Combustible / Water-Sensitive)]:
TSCA-Inventar-StatusTSCA listed
Zollcode29291090
RTECS-Nr.DV3960000

Anwendungen & Verwendung

Verwenden

4,4''-Diisocyanato-3,3''-dimethylbiphenyl is used in preparation method of high-thixotropy single-component modified silane polymer sealant comprising thixotropic agent.