Nitrogen mustard (HN-2)

Agent Name
Nitrogen mustard (HN-2)
Alternative Name
Mechlorethamine
CAS Number
51-75-2
Formula
C5-H11-Cl2-N
Major Category
Toxic Gases & Vapors
Nitrogen mustard (HN-2) formula graphical representation
Synonyms
Mechlorethamine; Bis(beta-chloroethyl)methylamine; N,N-Bis(2-chloroethyl)methylamine; Bis(2-chloroethyl)methylamine; Caryolysine; Chloramine (the Nitrogen Mustard); Chlorethazine; Chlormethine; 2-Chloro-N-(2-chloroethyl)-N-methylethanamine; Dichlor Amine; Dichloren (German); Beta,beta'-Dichlorodiethyl-N-methylamine; Di(chloroethyl)methylamine; N,N-Di(chloroethyl)methylamine; Di(2-chloroethyl)methylamine; 2,2'-Dichloro-N-methyldiethylamine; Diethylamine, 2,2'-dichloro-N-methyl-; Embichin; Ethanamine, 2-Chloro-N-(2-chloroethyl)-N-methyl-; HN2; HN-2; N-Methyl-Lost (German); N-Methyl-bis-chloraethylamin (German); Methylbis(chloroethylamine); Methylbis(beta-chloroethyl)amine; N-Methylbis(beta-chloroethyl)amine; N-Methylbis(2-chloroethyl)amine; Methylbis(2-chloroethyl)amine; N-Methyl-2,2'-dichlorodiethylamine; Methyldi(2-chloroethyl)amine; Mustargen; Mustine; Nitrogen mustard; Stickstofflost (ebewe); TL 146; [HSDB]
Category
Chemical Weapons
Description
Colorless to pale yellow, oily liquid with a faint soapy odor or fruity odor at high concentrations; [ATSDR-MMG]
Sources/Uses
Used as an antineoplastic drug and formerly used as a gas warfare agent; [HSDB]
Comments
"Nitrogen mustards are vesicants causing skin, eye, and respiratory tract injury. Although these agents cause cellular changes within several minutes of contact, the onset of pain and other clinical effects is delayed for hours. Nitrogen mustards are alkylating agents that may cause bone marrow suppression and neurologic toxicity. . . . Nitrogen mustards may decrease fertility." [ATSDR MMG] Danger of skin sensitization; "Germ cell mutagens that have shown to increase the mutant frequency in the progeny of exposed mammals." [MAK]
Biomedical References

Exposure Assessment

TIH
Yes
Vapor Pressure
0.427 mm Hg
Explanatory Notes
Danger of sensitization of skin; [MAK] LCt50 = 3,000 mg-min/m³; [ATSDR MMG] VP from Reference #2;

Adverse Effects

Anemia
Aplastic anemia
Toxic Pneumonitis
Yes
Neurotoxin
Other CNS neurotoxin
Reproductive Toxin
Yes
Dermatotoxin
Skin burns
IARC Carcinogen
Probable (2a)
NTP Carcinogen
Anticipated human carcinogen

Diseases, Processes, and Activities Linked to This Agent

Diseases

Occupational diseases associated with exposure to this agent: