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HCID 79804Erstellt: 23. Oktober 2026

3,4-Dichlor-1,2,5-thiadiazol

DCTD · AI3-61900 · BB_SC-3458 · ZINC04529131 · 258903_ALDRICH · EINECS 227-232-7 · 4ETHYL4AMINOBIPHENYL · 4'-Ethyl-4-biphenylamine

https://huagongshe.com/de/chemical/79804

Molekülstruktur von 3,4-Dichlor-1,2,5-thiadiazol

Identifikatoren & physikalische Daten

CAS No.5728-20-1
SummenformelC2Cl2N2S
Durchschnittliche Molmasse155,01 g/mol
Monoisotopische Masse153,9159246 g/mol
SMILESClc1nsnc1Cl
InChIKeyYNZQOVYRCBAMEU-UHFFFAOYSA-N
PubChem CID79804
EC No.227-232-7
DTXSIDDTXSID00205896
Lokaler Name3,4-Dichlor-1,2,5-thiadiazol

Chemische & physikalische Eigenschaften

XLogP2,3
Polarare Oberfläche (TPSA)54
H-Brücken-Donoren0
H-Brücken-Akzeptoren3
Frei drehbare Bindungen0
Schwere Atome7
Formalladung0
Komplexität62
Schmelzpunkt82-83 °C
Siedepunkt158 °C (lit.)
Dichte1.648 g/mL at 25 °C (lit.)
Brechungsindex1.561
Flammpunkt>100°C
LagerbedingungenKeep in dark place,Sealed in dry,Room Temperature
LöslichkeitSoluble in chloroform and methanol.
pKa (Säurekonstante)-3.82±0.10(Predicted)
AggregatzustandOil
FarbeColorless
BRN606585
InChIInChI=1S/C2Cl2N2S/c3-1-2(4)6-7-5-1
InChIKeyYNZQOVYRCBAMEU-UHFFFAOYSA-N
SMILESS1N=C(Cl)C(Cl)=N1
CAS Datenbank5728-20-1(CAS DataBase Reference)

Sicherheit & Vorschriften

GHS-EinstufungThis chemical does not meet GHS hazard criteria for 10% (6 of 60) of reports.DangerH301 (15%): Toxic if swallowed [Danger Acute toxicity, oral]H315 (83.3%): Causes skin irritation [Warning Skin corrosion/irritation]H319 (83.3%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]H335 (81.7%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposureRespiratory tract irritation]H412 (11.7%): Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]P261, P264, P264+P265, P270, P271, P273, P280, P301+P316, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 60 reports by companies from 11 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.Reported as not meeting GHS hazard criteria per 6 of 60 reports by companies.There are 10 notifications provided by 54 of 60 reports by companies with hazard statement code(s).Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.
Regulatorische InformationenStatus: Active Update: 17-05-2023 https://echa.europa.eu/registration-dossier/-/registered-dossier/18863
Hazard Classes and CategoriesAcute Tox. 3 (15%)Skin Irrit. 2 (83.3%)Eye Irrit. 2 (83.3%)STOT SE 3 (81.7%)Aquatic Chronic 3 (11.7%)
Wassergefährdungsklasse (WGK)2
UN-TransportnummerUN2810
Zollcode29349990
R-Sätze (R)36/37/38
GefahrensymboleXi
Sicherheitshinweise (S)26-37/39
Gefahrenklasse6.1Eye Irrit. 2Skin Irrit. 2STOT SE 3
VerpackungsgruppeIII
Lagerklasse10 - Combustible liquids