| Vendor | Spec | Unit | Price | Currency | Date |
| chempricehub | National standard | Kg | 0.38 | USD | 20170401 |
| chempricehub | National standard | Kg | 2.09 | USD | 20170401 |
| chempricehub | National standard | Kg | 3.84 | USD | 20170323 |
| chempricehub | National standard | Kg | 0.17 | USD | 20170323 |
| chempricehub | National standard | Kg | 2.97 | USD | 20170322 |
| chempricehub | National standard | Kg | 2.58 | USD | 20170322 |
| chempricehub | National standard | Kg | 2.84 | USD | 20170321 |
| chempricehub | National standard | Kg | 7.95 | USD | 20170321 |
| chempricehub | National standard | Kg | 2.72 | USD | 20170320 |
| chempricehub | National standard | Kg | 1.45 | USD | 20170320 |