| Vendor | Spec | Unit | Price | Currency | Date |
| chempricehub | National standard | Kg | 0.16 | USD | 20200510 |
| chempricehub | National standard | Kg | 0.29 | USD | 20200501 |
| chempricehub | National standard | Kg | 0.16 | USD | 20200501 |
| chempricehub | National standard | Kg | 0.18 | USD | 20200501 |
| chempricehub | National standard | Kg | 0.18 | USD | 20200501 |
| chempricehub | National standard | Kg | 0.18 | USD | 20200501 |
| chempricehub | National standard | Kg | 0.13 | USD | 20200501 |
| chempricehub | National standard | Kg | 0.19 | USD | 20200501 |
| chempricehub | National standard | Kg | 1.62 | USD | 20200501 |
| chempricehub | National standard | Kg | 0.18 | USD | 20200501 |