This product is packaged in amber glass serum vials with a septum and aluminim crimp cap.
The perforated center tab of the crimp cap may be removed manually to reveal the septum, through which the material may be reconstituted via needle and syringe.
The remaining aluminum 'ring' in intended to remain in place to secure the septum.
Please see the link below to review additional information available in the product datasheet:
https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/311/794/p1585dat.pdf




