Pi Day 2018

Offer valid in US and Canada only.

Pi Day and Einstein's birthday

Rationality is overrated

Starting March 12th through the 23rd, get irrational savings on most of our Life Science products. Use promo code 314 for 31.4% off your order!
Offer valid in US and Canada only.

Order $500 of product and get a free Pi day t-shirt.
Already placed your order?

   Submit shirt request

Offer good for purchases made between March 12-23, 2018 through SigmaAldrich.com or customer service. For United States, call: 800-325-3010 or email CSSOrders@sial.com. For Canada, call (800) 565-1400 or email Canada@sial.com. Must complete form by March 28th, 2018. One per customer, while supplies last. Discount is not valid on certain products including, but not limited to: FBS, Equipment, Custom products or any 3rd party products (Corning, Roche, etc.) List price is reference price for discount.