| Vendor | Spec | Unit | Price | Currency | Date |
| chempricehub | National standard | Kg | 1.21 | USD | 20200412 |
| chempricehub | National standard | Kg | 0.1 | USD | 20200412 |
| chempricehub | National standard | Kg | 0.17 | USD | 20200411 |
| chempricehub | National standard | Kg | 0.17 | USD | 20200411 |
| chempricehub | National standard | Kg | 0.12 | USD | 20200410 |
| chempricehub | National standard | Kg | 0.84 | USD | 20200401 |
| chempricehub | National standard | Kg | 1.97 | USD | 20200401 |
| chempricehub | National standard | Kg | 0.72 | USD | 20200401 |
| chempricehub | National standard | Kg | 12.85 | USD | 20200401 |
| chempricehub | National standard | Kg | 0.84 | USD | 20200401 |