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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 9521Generated: October 23, 2026

Ethylenediamine Dihydrochloride

ETHYLENEDIAMINE 2HCL · ETHYLENEDIAMMONIUM DICHLORIDE · Ethane-1,2-diamine dihydrochloride · Ethylenediaminehydrochloride · 1,2-DIAMINOETHANE DIHYDROCHLORIDE · chlor-ethamine · Ethylenediamine dihy · enediamine dihydrochL

https://huagongshe.com/en/chemical/9521

Ethylenediamine Dihydrochloride molecular structure

Identifiers & Physical Properties

CAS No.333-18-6
Molecular formulaC2H10Cl2N2
Average molar mass133.02 g/mol
Monoisotopic mass132.0221037 g/mol
SMILESCl.Cl.NCCN
InChIKeyOHHBFEVZJLBKEH-UHFFFAOYSA-N
PubChem CID9521
ChEBICHEBI:53626
EC No.206-369-6
DTXSIDDTXSID5043920

Chemical & Physical Properties

Topological polar surface area52
Hydrogen bond donors4
Hydrogen bond acceptors2
Rotatable bonds1
Heavy atoms6
Formal charge0
Complexity6
Physical DescriptionWhite crystalline solidHygroscopic[Sigma-Aldrich MSDS]
Melting point>300 °C(lit.)
Density1.46 g/cm3
Bulk density650kg/m3
Storage conditionsStore below +30°C.
Solubilitywater: soluble100mg/mL, clear, colorless to very faintly yellow300 g/L (20 ºC)
Physical stateCrystalline Powder
ColorWhite to off-white
pH5 (100g/l, H2O, 20℃)
SensitivityHygroscopic
BRN3665235
StabilityStable. Incompatible with strong oxidizing agents.
InChIInChI=1S/C2H8N2.2ClH/c3-1-2-4/h1-4H22*1H
InChIKeyOHHBFEVZJLBKEH-UHFFFAOYSA-N
SMILESC(N)CN.Cl.Cl
CAS DataBase Reference333-18-6(CAS DataBase Reference)
EWG's Food Scores1
FDA UNII91WQV43244
EPA Substance Registry SystemEthylenediamine dihydrochloride (333-18-6)
UNSPSC Code12352107
NACRESNA.22
GHS pictogramGHS07,GHS08
Signal wordDanger
GHS hazard statementsH302-H315-H317-H319-H334-H335
GHS precautionary statementsP261-P280-P301+P312-P302+P352-P304+P340+P312-P305+P351+P338
Hazard symbolsXn
Risk statements (R)22-36/37/38-42/43
Safety statements (S)22-26-36/37-45
Water hazard class (WGK)2
RTECS numberKV3850000
TSCA inventory statusTSCA listed
Customs code29212100
Storage class11 - Combustible Solids
Hazard classAcute Tox. 4 OralEye Irrit. 2Resp. Sens. 1Skin Irrit. 2Skin Sens. 1STOT SE 3
ToxicityLD50 orally in Rabbit: 3250 mg/kg LD50 dermal Rabbit > 2000 mg/kg

Safety & Regulations

GHS classificationDangerH302 (94.4%): Harmful if swallowed [Warning Acute toxicity, oral]H315 (93%): Causes skin irritation [Warning Skin corrosion/irritation]H317 (93%): May cause an allergic skin reaction [Warning Sensitization, Skin]H319 (93%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]H334 (88.7%): May cause allergy or asthma symptoms or breathing difficulties if inhaled [Danger Sensitization, respiratory]H335 (88.7%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposureRespiratory tract irritation]P233, P260, P261, P264, P264+P265, P270, P271, P272, P280, P284, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P333+P317, P337+P317, P342+P316, P362+P364, P403, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 71 reports by companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.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.
Regulatory informationChemical: 1,2-Ethanediamine, dihydrochlorideEthylenediammonium dichloride: Does not have an individual approval but may be used under an appropriate group standard
Hazards summaryCauses allergic dermatitis in 48-hr constant dermal studies of humans[RTECS] A skin and strong eye irritantMay cause skin and respiratory sensitizationHarmful by ingestionReproductive and developmental toxicity observed in experimental animals[Sigma-Aldrich MSDS] See Ethylenediamine.
Hazard Classes and CategoriesAcute Tox. 4 (94.4%)Skin Irrit. 2 (93%)Skin Sens. 1 (93%)Eye Irrit. 2A (93%)Resp. Sens. 1 (88.7%)STOT SE 3 (88.7%)
Protective Action Criteria (PAC)2.7 [mg/m3]29 [mg/m3]180 [mg/m3]
Adverse effectsSkin Sensitizer - An agent that can induce an allergic reaction in the skin.Asthma - Reversible bronchoconstriction (narrowing of bronchioles) initiated by the inhalation of irritating or allergenic agents.
Water hazard class (WGK)2
TSCA inventory statusTSCA listed
RTECS numberKV3850000
Customs code29212100
ToxicityLD50 orally in Rabbit: 3250 mg/kg LD50 dermal Rabbit > 2000 mg/kg
Risk statements (R)22-36/37/38-42/43
Signal wordDanger
GHS pictogramGHS07,GHS08
Hazard symbolsXn
Safety statements (S)22-26-36/37-45
Storage class11 - Combustible Solids
GHS hazard statementsH302-H315-H317-H319-H334-H335
Hazard classAcute Tox. 4 OralEye Irrit. 2Resp. Sens. 1Skin Irrit. 2Skin Sens. 1STOT SE 3
GHS precautionary statementsP261-P280-P301+P312-P302+P352-P304+P340+P312-P305+P351+P338

Applications & Uses

Uses

Ethylenediamine dihydrochloride is used as stabilizer in steroid creams and rubber latex; inhibitor in antifreeze solutions and cooling fluids; in floor-polish remover; in nystatin cream and aminophylline; epoxy-curing agent; accelerator in color development baths in photography; in veterinary preparations; in electroplating and electrophoretic gels, dyes, fungicides, insecticides, synthetic waxes, textile lubricants, and eye and nose drops; solvent for casein, albumin, shellac.

Uses

Ethylenediamine dihydrochloride was used in modified ethylenediamine condensation method for fluorimetric determination of catecholamines. It was used to investigate the luminescence properties of complexes of EuIII and TbIII with ethylenediamine. It was used in the synthesis of 1,3,5-tris(4,5-dihydro-1H-imidazol-2-yl)benzene.