- Excellent resolution
- Consistent from lot to lot
- Accurate molecular weight determination
* This promotion is open only to customers in the US and Canada who purchase a minimum of 2 qualifying protein standards or gel stains in a single purchase order. Offer valid for qualifying orders received no later than January 31, 2012, or until promotional supplies are depleted, whichever comes first. Customer can use this offer only once. Offer applies to a maximum of 10 standards or stains per customer. Offer applies to list price in effect at the time order is received by Invitrogen. Cannot be combined with other discounts or promotions. Offer void where prohibited, licensed, or restricted by federal, state, provincial, or local laws or regulation or agency/institutional policy. Other restrictions may apply.