| Vendor | Spec | Unit | Price | Currency | Date |
| chempricehub | National standard | Kg | 23.91 | USD | 20171014 |
| chempricehub | National standard | Kg | 10.18 | USD | 20171013 |
| chempricehub | National standard | Kg | 67.62 | USD | 20171012 |
| chempricehub | National standard | Kg | 26.92 | USD | 20171012 |
| chempricehub | National standard | Kg | 125.55 | USD | 20171011 |
| chempricehub | National standard | Kg | 124.45 | USD | 20171011 |
| chempricehub | National standard | Kg | 290.12 | USD | 20171011 |
| chempricehub | National standard | Kg | 156.04 | USD | 20171010 |
| chempricehub | National standard | Kg | 10.26 | USD | 20171010 |
| chempricehub | National standard | Kg | 124.55 | USD | 20171001 |