CAS No. 3934-20-1CID 77531 EINECS(EC#) 223-508-6Molecular FormulaC4H2Cl2N2 (isomer) Inchi InChI=1S/C4H2Cl2N2/c5-3-1-2-7-4(6)8-3/h1-2H InChkey BTTNYQZNBZNDOR-UHFFFAOYSA-N Canonical Smiles C1=CN=C(N=C1Cl)Cl Isomers Smiles C1=CN=C(N=C1Cl)Cl

Properties

3.1 Density1.4933.1 Melting point57-62℃3.1 Boiling point101℃ (23 mmHg)3.1 Refractive index1.5593.1 Flash Point104.3 °C3.1 Precise Quality147.960003.1 PSA25.780003.1 logP1.783403.1 AppearanceWhite Solid3.2 Chemical PropertiesWhite Solid 2,4-Dichloropyrimidine Preparation Products And Raw materials Raw materials3.3 Color/FormPale-yellow to Yellow-brown Solid3.4 pKa-2.84±0.20(Predicted)3.5 Water SolubilitySoluble in water (partly), methanol, chloroform, and ethyl acetate.3.6 StabilityStable at room temperature in closed containers under normal storage and handling conditions.3.7 StorageTemp−20°C

Use and Manufacturing

4.1 GHS Classification

Signal: Warning

GHS Hazard Statements

Aggregated GHS information provided by 51 companies from 10 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

H315 (98.04%): Causes skin irritation [Warning Skin corrosion/irritation]

H319 (98.04%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

H335 (96.08%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

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.

Precautionary Statement Codes

P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, and P501

4.2 StorageStore under Nitrogen. Moisture Sensitive. Keep Cold.