UN/NA 2743 · n-Butyl chloroformate

Material name

2743 on a placard, orange panel or shipping paper

It points to the ERG 2024 entry “n-Butyl chloroformate” and to Guide 155. On a numbered orange panel, 2743 is the lower number (how to read an orange panel).

ERG 2024 markings for 2743

2743 is highlighted in green, so ERG 2024 Table 1 (Initial Isolation and Protective Action Distances) has an entry for it: “n-Butyl chloroformate”. Hazora shows those distances in the app, not on this page. Its guide number 155 has no P.

Entries near 2743

By number (yellow pages): before 2743 come UN/NA 2740 n-Propyl chloroformate (Guide 155); UN/NA 2741 Barium hypochlorite, with more than 22% available chlorine (Guide 141) and UN/NA 2742 Chloroformates, poisonous, corrosive, flammable, n.o.s. (Guide 155); after it, UN/NA 2744 Cyclobutyl chloroformate (Guide 155); UN/NA 2745 Chloromethyl chloroformate (Guide 157) and UN/NA 2746 Phenyl chloroformate (Guide 156).

By name (blue pages): “n-Butyl chloroformate” comes after n-Butyl bromide (UN/NA 1126, Guide 130) and n-Butyl chloride (UN/NA 1127, Guide 130) and before n-Butyl formate (UN/NA 1128, Guide 129) and n-Butyl isocyanate (UN/NA 2485, Guide 155P).

Other names starting with “n-Butyl”: n-Butyl methacrylate, stabilized (UN/NA 2227, Guide 130P).

Guide 155 · Library

Guide 155 covers 44 UN/NA numbers. The 12 around 2743 in the guide’s number order: UN/NA 2488 Cyclohexyl isocyanate; UN/NA 2589 Vinyl chloroacetate; UN/NA 2605 Methoxymethyl isocyanate; UN/NA 2606 Methyl orthosilicate; UN/NA 2740 n-Propyl chloroformate; UN/NA 2742 Chloroformates, poisonous, corrosive, flammable, n.o.s.; UN/NA 2744 Cyclobutyl chloroformate; UN/NA 2826 Ethyl chlorothioformate; UN/NA 2985 Chlorosilanes, flammable, corrosive, n.o.s.; UN/NA 2986 Chlorosilanes, corrosive, flammable, n.o.s.; UN/NA 3080 Isocyanate solution, poisonous, flammable, n.o.s.; UN/NA 3362 Chlorosilanes, poisonous, corrosive, flammable, n.o.s.

Sources

• PHMSA · ERG 2024 · EN / ES / FR