Upgrade Your RFP: Maximize Your Signal

Ordering tdTomato antibody? Add a FREE 20 µg trial size of mScarlet/mCherry antibody to your cart.

✅ Valid for both customers & distributors

Claim Your Free Trial

Follow these three simple steps to test our validated antibodies.

1

Add tdTomato

Add the standard 100 μg tdTomato Antibody (orb182397) into your shopping cart.

2

Select Upgrade

Choose your preferred 20µg mScarlet or mCherry antibody trial from the dropdown table below and click on the plus symbol.

3

Receive Your Gift

The 20 μg size is automatically added to your cart for free. Distributors can also claim this promotion.

Why Upgrade from tdTomato?

While tdTomato is famous for its brightness, its bulky 55 kDa tandem-dimer structure often acts as an anchor on your target proteins. Fusing such a massive tag can cause steric hindrance, blocking active sites, disrupting natural folding, and triggering artificial protein aggregation that misleads your localization data. By switching to true monomers like mScarlet or mCherry (~26-28 kDa), you cut the tag size in half. This preserves your target protein's native biological function, prevents artificial clustering, and frees up critical DNA payload space for viral packaging (like AAVs), all while maintaining crystal-clear fluorescent signals, making them perfect companions for multi-color imaging alongside classic GFP/EGFP setups.

Technical Feature	tdTomato (The Benchmark)	mScarlet (The Upgrade)	mCherry (The Workhorse)
Protein Structure	Tandem Dimer	True Monomer	True Monomer
Molecular Weight (Size)	~55 kDa (Bulky)	~26 kDa (Sleek)	~28 kDa (Sleek)
Relative Brightness	Extremely High	Very High (Highest for Monomers)	Moderate
Maturation Speed	Moderate	Fast	Very Fast
Ideal Application	Deep tissue / Whole-animal imaging	High-brightness fusion tags where size matters	Highly stable / pH-resistant fusion tagging

Available Antibodies

Target	Validation	SKU	Clonality	Dilution Range	View Trial Size
mScarlet		orb1597254	Mouse mAb	WB: 1:2000-5000    IF/ICC: 1:100-1:500    FC: 2ug/test	View product
mScarlet		orb2307964	Rabbit pAb	WB: 1:1000-2000    IF/ICC: 1:50-200	View product
mScarlet		orb1463262	Goat pAb	WB: 1:500-1:5,000    IF: 1:50-1:500    IHC-P: 1:50-1:500    IEM: 1:50-1:500    FC: 2 ug/test	View product
mCherry		orb611194	Chicken pAb	WB: 1:10,000-1:30,000    IF: 1:200-1:1,000    ELISA: 1:20,000-1:50,000    FC: 2 ug/test	View product
mCherry		orb11618	Goat pAb	WB: 1:500-1:5,000    IF: 1:50-1:500    IEM: 1:50-1:500    IHC-F/IHC-P: 1:50-1:500    FC: 2 ug/test	View product
mCherry		orb66657	Mouse mAb	WB: 1:500-1: 2000    IF/ICC: 1:50-1:500    FC: 2 ug/test	View product

⚠️ Terms & Conditions

• Quantities are limited and available on a first-come, first-served basis.
• This promotion is fully valid for both direct purchasers and authorized Biorbyt distributors (mention in PO- "tdTomato Promotion").
• Simply add the tdTomato (orb182397) to your order, and select your preferred free 20µg antibody.
• Contact us if you need assistance placing your Purchase Order.

Biorbyt is dedicated to providing researchers with reliable, extreme-sensitivity reagents to push discovery forward.

Looking for more technical data? Explore our comprehensive Fluorescent Protein Hub to find protocols, pathways, and antibody selection guides.