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HomeUN NumbersClass 4.1UN3251
Hazard Class 4.1Packing Group III

UN Number

UN3251

Isosorbide-5-mononitrate

Official source: 49 CFR 172.101 (eCFR)

Hazardous Materials Table entry

One row in 49 CFR 172.101 for UN3251.

Sym.DescriptionClassPGLabelsSpecial provisions8A8B8C9A9B10A10B
—Isosorbide-5-mononitrate4.1III4.166, 159, IB8151223240ForbiddenForbiddenD12, 25, 40, 84
  • Sym.: Column 1 symbols, 49 CFR 172.101(b).
  • Description: Column 2, the proper shipping name, 172.101(c).
  • Class: Column 3, hazard class or division, 172.101(d).
  • PG: Column 5, packing group, 172.101(f).
  • Labels: Column 6, label codes, 172.101(g).
  • Special provisions: Column 7, codes explained in 49 CFR 172.102, 172.101(h).
  • 8A / 8B / 8C: Packaging exceptions, non-bulk and bulk sections of 49 CFR part 173 (an entry of 202 means 173.202), 172.101(i).
  • 9A / 9B: Maximum quantity per package on passenger aircraft or rail, and on cargo aircraft only, 172.101(j).
  • 10A / 10B: Vessel stowage location and other stowage and handling codes, 172.101(k).

Division 4.1 — Flammable Solid

See the full class list

Flammable solid (Division 4.1) covers desensitized explosives, self-reactive materials that are thermally unstable and can undergo exothermic decomposition without participation of oxygen, and readily combustible solids.

Source: 49 CFR 173.124 (eCFR).

Previous / next UN number

UN3250Chloroacetic acid, moltenUN3252Difluoromethane or Refrigerant gas R 32

Nearby Class 4.1 UN Numbers

UN3239Self-reactive liquid type F, temperature controlledUN3240Self-reactive solid type F, temperature controlledUN32412-Bromo-2-nitropropane-1,3-diolUN3242AzodicarbonamideUN3270Nitrocellulose membrane filters, with not more than 12.6% nitrogen, by dry massUN33172-Amino-4,6-Dinitrophenol, wetted with not less than 20 percent water by massUN3319Nitroglycerin mixture, desensitized, solid, n.o.s. with more than 2 percent but not more than 10 percent nitroglycerin, by massUN3344Pentaerythrite tetranitrate mixture, desensitized, solid, n.o.s. or Pentaerythritol tetranitrate mixture, desensitized, solid, n.o.s. or PETN mixture, desensitized, solid, n.o.s., with more than 10 percent but not more than 20 percent PETN, by mass
View the full Class 4.1 list →

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