LogoAssay
Gloved hands adjusting a micropipette rack in a clinical research lab with ambient light
Precision Lab Supply · Est. 2009

Every instrument, exactly when your science demands it.

Precision glass, calibrated steel, and cold-chain reagents — curated by specialists who know the difference between your Eppendorf and your Sartorius.

48hr
Average fulfillment
12,400+
Active SKUs
99.1%
Order accuracy
"
The centrifuge arrived at 7 AM — twelve hours after I placed the order. We ran our final samples before the NIH site visit. Assay saved the grant.
Dr. Patricia Osei-Bonsu, Associate Professor at Johns Hopkins School of Medicine
Dr. Patricia Osei-Bonsu
Assoc. Professor, Biochemistry · Johns Hopkins SOM

Trusted by research institutions across North America

Stanford MedicineMayo ClinicBroad InstituteUCSF PathologyGenentech R&DNIH Intramural
Explore categories
Expert Panel — Select a Category
Spoke 01

Chromatography

From method development to QC release — HPLC, UHPLC, and GC systems with column chemistries matched to your analyte matrix. Our chromatography specialist, Dr. Marcus Webb, walks every client through column selection before any quote is issued.

Dr. Marcus Webb, Chromatography Specialist at Assay Supply Co, PhD analytical chemistry
Dr. Marcus Webb
Chromatography Specialist · PhD Anal. Chem.
Chromatography specialist reviewing HPLC column selection guide in analytical laboratory
"What to ask before you buy an HPLC system"
4 min · Dr. Marcus Webb · Chromatography Specialist
Most ordered
HPLC liquid chromatography system with gradient mixer and UV detector on lab bench
HPLC System

Agilent 1260 Infinity II LC

From $42,000·3–5 business days
Flow range0.001–10 mL/min
Pressure max600 bar
DetectorDAD / VWD / FLD
CompatibilityOpenLAB CDS
Pharma standard
Ultra-high performance liquid chromatography UPLC system in analytical chemistry lab
UHPLC System

Waters ACQUITY UPLC H-Class

From $68,500·5–7 business days
Flow range0.010–2.000 mL/min
Pressure max1,034 bar
Sample temp4–40 °C
SoftwareEmpower 3
Gas chromatography GC system with split/splitless injector and FID detector in analytical lab
GC System

Shimadzu GC-2030 Gas Chromatograph

From $18,900·2–4 business days
DetectorsFID, TCD, ECD, FPD
Column ovenAmbient +4 to 450 °C
InjectionSplit/Splitless
SoftwareLabSolutions GC
Spoke 02

Microscopy

Widefield to confocal, transmitted to TIRF — matched to your imaging core's throughput and your PI's acquisition protocol. Specialist Dr. Yuki Tanaka reviews detector sensitivity and objective NA before any system ships.

Dr. Yuki Tanaka, Microscopy Specialist at Assay Supply Co with expertise in fluorescence imaging
Dr. Yuki Tanaka
Microscopy Specialist · PhD Biophysics
Zeiss inverted fluorescence microscope for live cell imaging in tissue culture lab
Live cell imaging
Inverted Fluorescence

Zeiss Axio Observer 7

From $89,000
Nikon inverted research microscope with confocal scanning head attachment in imaging core facility
Confocal upgradeable
Confocal Ready

Nikon Eclipse Ti2-E

From $72,000
Olympus upright brightfield microscope for histology and pathology tissue section analysis
Pathology standard
Brightfield / Phase

Olympus BX53 Upright

From $14,500
Spoke 03

Cold Storage

ULT freezers, cryogenic dewars, and 4°C refrigerators — selected against your sample inventory, regulatory requirements, and facility power specs. Every ULT ships with a calibration certificate.

–86°C → +8°C
Full cold chain coverage
Ultra-low temperature minus 86 degree freezer for biological sample storage in biobank facility
CLIA compliant

Thermo Scientific TSX Series ULT

–86°C · 23 cu ft

Sample protection with VIP Pro insulation. CFC-free refrigerant. Alarm relay contacts.

Ships in 5–7 days
Eppendorf high-capacity ultra low temperature freezer with dual compressor for pharmaceutical storage
FDA 21 CFR

Eppendorf CryoCube F740hi

–86°C · 40 cu ft · Hi-Capacity

Dual compressor redundancy. IntelliTemp sensor array. Meets FDA 21 CFR Part 11.

Ships in 7–10 days
Stirling engine ultra-low temperature freezer with no CFC refrigerant for sustainable lab operation
Energy efficient

Stirling VAULT ULT Freezer

–80°C · 20 cu ft · Stirling Engine

No compressor, no CFC. 30% lower energy than conventional ULT. Ideal for remote sites.

Ships in 3–5 days
Spoke 04

Consumables

6,800+ SKUs in stock. No minimum order. Grant-cycle orders ship same-day before 2 PM EST. Brand-matched to your existing pipette ecosystem — we stock Eppendorf, Rainin, Sartorius, and Gilson tips side-by-side.

Same-day
Orders before 2 PM EST

Pipette Tips

Eppendorf / Rainin / Sartorius
1,240 SKUs
epT.I.P.S. 0.1–10 μL
LTS 200 μL filtered
Optifit 1000 μL

Microtubes & Plates

Thermo / Corning / Greiner
890 SKUs
Safe-Lock 1.5 mL
96-well PCR plate skirted
384-well black-bottom

Syringe Filters

Millipore / Pall / Whatman
340 SKUs
0.22 μm PVDF 13 mm
0.45 μm PES 25 mm
Glass fiber pre-filter

Cell Culture

Corning / Sarstedt / BD
620 SKUs
T-75 flask TC-treated
6-well plate
Serological 25 mL
Need a consumables quote for a full lab setup?
Send us your inventory list — we'll return a line-item PDF within 4 hours.
Spoke 05

Safety & Containment

BSL-2 suite outfitting to CLIA-mandated containment upgrades — our safety specialist reviews your floor plan and regulatory requirements before recommending any biosafety cabinet or fume hood configuration.

BSL-2 ready

BSL-2 Starter Kit

Lab coat (L/XL), nitrile gloves (M/L), face shield, biosafety tape, sharps container 2 qt.

NSF 49 certified

Class II Type A2 Biosafety Cabinet

NSF/ANSI 49 certified. 4-ft work area. HEPA filtration 99.99% ≥0.3 μm. Field certifiable.

ASHRAE 110

Chemical Fume Hood — 4 ft

Sash opening alarm, airfoil design, corrosion-resistant liner. Ships with ASHRAE 110 test report.

OSHA compliant

Spill Response Kit

Biohazard and chemical variants. Includes neutralizer, absorbent pads, disposal bags, PPE.

Preparing for a CLIA inspection?

Our safety specialist can review your current equipment list against CLIA subpart K requirements and identify any gaps — at no charge with a scheduled Spec Review.

Procurement Consultation

Schedule a Spec Review

30 minutes with a specialist who has read your instrument's service manual. No sales script — just a calibrated conversation about your exact application, budget, and delivery window.

Specialist matched to your equipment category
Quote ready within 2 hours of call
No commitment — cancel up to 1 hour before
CLIA / grant deadline accommodations available
Prefer a quote first?

Available Mon–Fri · Next available slot: Tomorrow 9:00 AM

Secondary Path

Request a Quote List

Need a line-item PDF before a call? Send us your equipment list or describe what you need — we'll return a formatted quote within 4 business hours.

PDF returned within 4 business hours · No commitment required