Catalog Number S37496

Product Name Sulfate latex, 8% w/v 0.7 μm

Appearance white suspension

Medium de-ionized water

Lot Number 1606279

Negatively charged surfactant-free polystyrene microspheres with sulfate functional groups on the

surface.

Surface charge is pH independent. Stable at wide range pH. Surface is hydrophobic in nature.

STORE AT 2 - 8°C, DO NOT FREEZE

LOT DATA SPECIFICATION

PHYSICAL PROPERTIES OF PS1

1. of polystyrene

2. by Transmission Electron Microscopy.

Betty Wood, Quality Assurance Manager

22-Feb-2012

Life Technologies Corporation, on behalf of its Invitrogen business, Molecular Probes® labeling and detection technologies,

certifies on the date above that this is an accurate record of the analysis of the subject lot and that the data conform to the

specifications in effect for this product at the time of analysis.