4-Methylumbelliferone (CAS 90-33-5) from Mexico
4-Methylumbelliferone is a methylcoumarin derivative with a lactone ring structure, making it a heterocyclic compound with oxygen hetero-atoms only. It is commonly used as a fluorogenic substrate in biochemical assays and as a laser dye.
Duty Rate — Mexico → Canada
0%
Import Tips
• Ensure the product is a separate chemically defined compound and not mixed with other substances
• Declare the CAS number (90-33-5) on customs documentation to facilitate classification
• Verify if the product requires any import permits under Canadian chemical regulations