# List of UN numbers 2501 to 2600

UN numbers from UN2501 to UN2600 as assigned by the United Nations Committee of Experts on the Transport of Dangerous Goods are as follows:

## UN 2501 to UN 2600

| UN Number | Class | Proper Shipping Name |
| UN 2501 | 6.1 | Tris(1-aziridinyl)phosphine oxide, solution |
| UN 2502 | 8 | Valeryl chloride |
| UN 2503 | 8 | Zirconium tetrachloride |
| UN 2504 | 6.1 | Tetrabromoethane |
| UN 2505 | 6.1 | Ammonium fluoride |
| UN 2506 | 8 | Ammonium hydrogen sulfate |
| UN 2507 | 8 | Chloroplatinic acid, solid |
| UN 2508 | 8 | Molybdenum pentachloride |
| UN 2509 | 8 | Potassium hydrogen sulfate |
| UN 2510 | ? | (UN No. no longer in use) |
| UN 2511 | 8 | 2-Chloropropionic acid |
| UN 2512 | 6.1 | Aminophenols (o-; m-; p-) |
| UN 2513 | 8 | Bromoacetyl bromide |
| UN 2514 | 3 | Bromobenzene |
| UN 2515 | 6.1 | Bromoform |
| UN 2516 | 6.1 | Carbon tetrabromide |
| UN 2517 | 2 | 1-Chloro-1,1-difluoroethane or Refrigerant gas R 142b |
| UN 2518 | 6.1 | 1,5,9-Cyclododecatriene |
| UN 2519 | ? | (UN No. no longer in use) |
| UN 2520 | 3 | Cyclooctadienes |
| UN 2521 | 6.1 | Diketene, inhibited |
| UN 2522 | 6.1 | 2-Dimethylaminoethyl methacrylate |
| UN 2523 | ? | (UN No. no longer in use) |
| UN 2524 | 3 | Ethyl orthoformate |
| UN 2525 | 6.1 | Ethyl oxalate |
| UN 2526 | 3 | Furfurylamine |
| UN 2527 | 3 | Isobutyl acrylate, inhibited |
| UN 2528 | 3 | Isobutyl isobutyrate |
| UN 2529 | 3 | Isobutyric acid |
| UN 2530 | 3 | (UN No. no longer in use) Isobutyric anhydride (UN No. longer in use) |
| UN 2531 | 8 | Methacrylic acid, inhibited |
| UN 2532 | ? | (UN No. no longer in use) |
| UN 2533 | 6.1 | Methyl trichloroacetate |
| UN 2534 | 2 | Methylchlorosilane |
| UN 2535 | 3 | 4-Methylmorpholine or n-methylmorpholine |
| UN 2536 | 3 | Methyltetrahydrofuran |
| UN 2537 | ? | (UN No. no longer in use) Chlorodifluoroethane (UN No. no longer in use) |
| UN 2538 | 4.1 | Nitronaphthalene |
| UN 2539 | ? | (UN No. no longer in use) Octylaldehyde (UN No. no longer in use) |
| UN 2540 | ? | (UN No. no longer in use) |
| UN 2541 | 3 | Terpinolene |
| UN 2542 | 6.1 | Tributylamine |
| UN 2543 to 2544 | ? | (UN No.s no longer in use) |
| UN 2545 | 4.2 | Hafnium powder, dry |
| UN 2546 | 4.2 | Titanium powder, dry |
| UN 2547 | 5.1 | Sodium superoxide |
| UN 2548 | 2 | Chlorine pentafluoride |
| UN 2549 | ? | (UN No. no longer in use) |
| UN 2550 | ? | (UN No. no longer in use) Ethyl methyl ketone peroxides (UN No. no longer in use) |
| UN 2551 | ? | (UN No. no longer in use) tert-Butyl peroxydiethylacetate with tert-Butyl peroxybenzoate (UN No. no longer in use) |
| UN 2552 | 6.1 | Hexafluoroacetone hydrate |
| UN 2553 | ? | (UN No. no longer in use) Coal tar naphtha (UN No. no longer in use) |
| UN 2554 | 3 | Methyl allyl chloride |
| UN 2555 | 4.1 | Nitrocellulose with water with not less than 25 percent water, by mass |
| UN 2556 | 4.1 | Nitrocellulose, with alcohol with not less than 25 percent alcohol, by mass, and with not more than 12.6 percent nitrogen, by dry mass |
| UN 2557 | 4.1 | Nitrocellulose, with not more than 12.6 percent nitrogen, by dry mass, or Nitrocellulose mixture with pigment or Nitrocellulose mixture with plasticizer or Nitrocellulose mixture with pigment and plasticizer |
| UN 2558 | 6.1 | Epibromohydrin |
| UN 2559 | ? | (UN No. no longer in use) Chloromethylpropanes (UN No. no longer in use) |
| UN 2560 | 3 | 2-Methylpentan-2-ol |
| UN 2561 | 3 | 3-Methyl-1-butene |
| UN 2562 | ? | (UN No. no longer in use) tert-Butyl peroxyisobutyrate (UN No. no longer in use) |
| UN 2563 | ? | (UN No. no longer in use) |
| UN 2564 | 8 | Trichloroacetic acid, solution |
| UN 2565 | 8 | Dicyclohexylamine |
| UN 2566 | ? | (UN No. no longer in use) |
| UN 2567 | 6.1 | Sodium pentachlorophenate |
| UN 2568 | ? | (UN No. no longer in use) |
| UN 2569 | ? | (UN No. no longer in use) Trichloro-s-triazinetrione and its salts, dry (UN No. no longer in use) |
| UN 2570 | 6.1 | Cadmium compounds |
| UN 2571 | 8 | Alkylsulfuric acids |
| UN 2572 | 6.1 | Phenylhydrazine |
| UN 2573 | 5.1 | Thallium chlorate |
| UN 2574 | 6.1 | Tricresyl phosphate with more than 3 percent ortho isomer |
| UN 2575 | ? | (UN No. no longer in use) Vanadium compounds, not otherwise specified (UN No. no longer in use) |
| UN 2576 | 8 | Phosphorus oxybromide, molten |
| UN 2577 | 8 | Phenylacetyl chloride |
| UN 2578 | 8 | Phosphorus trioxide |
| UN 2579 | 8 | Piperazine |
| UN 2580 | 8 | Aluminum bromide, solution |
| UN 2581 | 8 | Aluminum chloride, solution |
| UN 2582 | 8 | Ferric chloride, solution |
| UN 2583 | 8 | Alkyl sulfonic acids, solid or Aryl sulfonic acids, solid with more than 5 percent free sulfuric acid |
| UN 2584 | 8 | Alkyl sulfonic acids, liquid or Aryl sulfonic acids, liquid with more than 5 percent free sulfuric acid |
| UN 2585 | 8 | Alkyl sulfonic acids, solid or Aryl sulfonic acids, solid with not more than 5 percent free sulfuric acid |
| UN 2586 | 8 | Alkyl sulfonic acids, liquid or Aryl sulfonic acids, liquid with not more than 5 percent free sulfuric acid |
| UN 2587 | 6.1 | Benzoquinone |
| UN 2588 | 6.1 | Pesticides, solid, toxic, not otherwise specified |
| UN 2589 | 6.1 | Vinyl chloroacetate |
| UN 2590 | 9 | White asbestos (chrysotile, actinolite, anthophyllite, tremolite) |
| UN 2591 | 2 | Xenon, refrigerated liquid (cryogenic liquids) |
| UN 2592 | ? | (UN No. no longer in use) Distearyl peroxydicarbonate (UN No. no longer in use) |
| UN 2593 | ? | (UN No. no longer in use) Di-(2-methylbenzoyl)peroxide (UN No. no longer in use) |
| UN 2594 | ? | (UN No. no longer in use) tert-Butyl peroxyneodecanoate (UN No. no longer in use) |
| UN 2595 | ? | (UN No. no longer in use) Dimyristylperoxydicarbonate (UN No. no longer in use) |
| UN 2596 | ? | (UN No. no longer in use) 3-tert-Butyl peroxy-3-phenylphthalide (UN No. no longer in use) |
| UN 2597 | ? | (UN No. no longer in use) Di-(3,5,5,-trimethyl-1,2-dioxolanyl-3)peroxide (UN No no longer in use) |
| UN 2598 | ? | (UN No. no longer in use) Ethyl-3,3-di-(tert-butylperoxy)butyrate (UN No. no longer in use) |
| UN 2599 | 2 | Chlorotrifluoromethane and trifluoromethane azeotropic mixture or Refrigerant gas R 503 with approximately 60 percent chlorotrifluoromethane |
| UN 2600 | 2 | (UN No. no longer in use) Carbon monoxide and hydrogen mixture, compressed (UN No. no longer in use) |