Our products are primary packed in 2 to 5 ml glass vials and secondary in a plastic bottle with a desiccant. This secondary packaging allow storage in dry and dark conditions as requested. Compared to the given sample weight, the vials are slightly overfilled, according to be following rule:
Reported Weight | Actual Range (mg) | |
Solids | 1 mg | 1,2-1,4 |
5 mg | 5,3-5,6 | |
10 mg | 10,3-10,8 | |
20 mg | 20,3-20,8 | |
25 mg | 25,5-25,8 | |
50 mg | 50,5-50,8 | |
100 mg | 100,5-101,5 | |
Oils | 50 mg | 55-60 |
100 mg | 105-115 |
For quantitative testing, the end-user must transfer and accurately weigh the amount of desired substance into his standard preparation.
Example of labels of primary and secondary packaging are given below :

Quality Grade
Back to Oxford ! We attend ICSB at the National Center for Natural Products Research (NCNPR) within the School of Pharmacy at The University of Mississippi...
Separation sciences is a key expertise at Extrasynthese, in the field of natural products. We are pleased to attend and to support the 15th Congrès de l'Association Francophone des Sciences Séparatives, held in Paris on March 28-30th.
Nous sommes exposants au salon Forum Labo, porte de Versailles à Paris...