Browse published Reference Standards & Others records across the authoritative scientific sourcing taxonomy.
Up to 11 prior months per region. Limited history stays unclassified.
CAS 58-08-2
ACS Grade, 99%, SOLID · 1 g
US trend
China trend
Absolute index spread: $86.00 · |US index − China index|
CAS 7789-20-0
ACS Grade, 99%, SOLID · 100 g
US trend
China trend
Absolute index spread: $61.00 · |US index − China index|
CAS 75-24-1
ACS Grade, 98.5%, LIQUID · 100 mL
US trend
China trend
Absolute index spread: $147.00 · |US index − China index|
| Structure | Chemical | Specification | US Index Unit rate | China Index Unit rate | Index Spread US − China | |
|---|---|---|---|---|---|---|
| Caffeine Reference Standard58-08-2C8H10N4O2 | ACS Grade, 99%, SOLID | $125.00/g · High relative to 11 prior monthly observations 125 USD / 1 g | $39.00/g · High relative to 11 prior monthly observations 39 USD / 1 g | $86.00 68.8% | |
| Deuterium Oxide7789-20-0D2O | ACS Grade, 99%, SOLID | $0.96/g · High relative to 11 prior monthly observations 96 USD / 100 g | $0.35/g · High relative to 11 prior monthly observations 35 USD / 100 g | $61.00 63.5% | |
| Trimethylaluminum75-24-1C3H9Al | ACS Grade, 98.5%, LIQUID | $2,450.00/L · High relative to 11 prior monthly observations 245 USD / 100 mL | $980.00/L · High relative to 11 prior monthly observations 98 USD / 100 mL | $147.00 60.0% |