Pay in installments of $26.25 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Sep 27 - Oct 2
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Alexa Fluor® 647 Rat Anti-Mouse CD21/CD35 antibody (S-R717)Product Specification Host Rat Antigen CD21 CD35 Synonyms Complement receptor type 2; Complement C3d receptor; Cr2; Cr1 Location Cell membrane Accession P19070 Clone Number S R717 Antibody Type Rat mAb Isotype IgG2a,k Application FCM Reactivity Ms Positive Sample BALB c mouse splenocytes Purification Protein G Concentration 0. 05mg ml Conjugation Alexa Fluor 647 Physical Appearance Liquid Storage Buffer PBS, 25% Glycerol, 1% BSA, 0. 3% Proclin 300
Product Specification
| Host | Rat |
| Antigen | CD21/CD35 |
| Synonyms | Complement receptor type 2; Complement C3d receptor; Cr2; Cr1 |
| Location | Cell membrane |
| Accession | P19070 |
| Clone Number | S-R717 |
| Antibody Type | Rat mAb |
| Isotype | IgG2a,k |
| Application | FCM |
| Reactivity | Ms |
| Positive Sample | BALB/c mouse splenocytes |
| Purification | Protein G |
| Concentration | 0.05mg/ml |
| Conjugation | Alexa Fluor® 647 |
| Physical Appearance | Liquid |
| Storage Buffer | PBS, 25% Glycerol, 1% BSA, 0.3% Proclin 300 |
| Stability & Storage | 12 months from date of receipt / reconstitution, 2 to 8 °C as supplied. |
Dilution
| application | dilution | species |
| FCM | 5μl per million cells in 100μl volume | Ms |
Background
CD21 (CR2) and CD35 (CR1) are key complement receptors predominantly expressed on B cells and follicular dendritic cells (FDCs). CD21, also known as the C3d receptor, binds to complement fragments like C3d and iC3b, playing a crucial role in B cell activation and regulation of immune responses. It also serves as the receptor for Epstein-Barr virus (EBV) on B cells. CD35, on the other hand, binds to C3b and C4b, facilitating phagocytosis and immune complex clearance. It helps in the activation of B cells and regulation of complement activity. Both receptors are involved in antigen presentation and immune complex internalization, contributing to both innate and adaptive immune responses.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 24 reviews
Sort
Product Reviews
★★★★★ 5
Absolutely worth the money!
Size: Left Facing, Size: Left Facing
I can't say enough about these spice racks! I have kept my spices in a corner cabinet on lazy Susans for the last 25 years and that's worked great, but it did not have much curb appeal and some spices were in the middle of the caddies so I would have to pull the front ones off to get to the middle ones. Corner cabinets are tricky and can be such a waste of space, but I made it work. But now it doesn't just work, it sings! My husband bought me 4 units and they fit perfectly in the space. Whoever designed these racks thought through EVERYTHING. The labels are well organized with plenty of obscure herbs and spices as well as all the common ones, and some blank stickers for the products they don't have labels for. There is a list of all the spices and which page you will find the label. There are also small corresponding labels to put on the ends so you know which rack has your spice (I haven't put those on yet because I want to make sure I have everything where I want it first). Since I have 4 sets of labels, I used some for labeling the baskets where I have the extra spices for refills. The racks are sturdy and easy to install. These would also work well in cabinets that are not corners - you would pull them straight out and it would make it easy to access all of your spices. If I could give this 10 stars, I would.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 28, 2025
★★★★★ 5
Fabulous!
Size: Left Facing, Size: Left Facing
I wish I had remembered to take a picture before I emptied my spice cabinet. Actually, on second thought, it would be embarrassing to share. I have two of these sturdy slide-out spice racks and could use another one. The racks were not hard to install, slide smoothly, look great, and my spices are in order! I was able to fit two of them on one side of my cabinet. I love the jars and labels. I use some spices much more than others so I put the matching labels on the large containers of these spices and keep them on the top shelf. I would definitely buy these again!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 15, 2026
★★★★★ 4
Clever Space Saver with a Few Caveats
Size: Left Facing
This spice rack system really helped bring order to the chaos in my cabinet, and it looks great doing it. The vertical design makes spices visible and accessible, and the included 20 jars and 801 labels are a huge bonus for customization.
🧩 Easy to Install, But Drawer Direction Matters
Setup is fairly simple, but take note: the drawer only slides out in one direction depending on which version you buy (left or right facing). As a reviewer noted on page 6, it’s not reversible, which can be a headache if your layout changes or you order the wrong orientation.
🪛 Build Quality is Solid but Assembly Could Be Smoother
The frame is sturdy and feels well-made, but you’ll need to screw the rails into the base — and the screws included aren’t the best. One user suggested bolts instead of screws (page 6), and I agree. A little more care here would elevate the overall experience.
🌶️ Jars and Labels Are Fantastic
This is where the system really shines. The jars are glass with metal lids and fit perfectly in the rack. The label set includes multiples in several fonts, blank ones, and even a chalk marker — very thoughtful!
✅ Pros:
Excellent use of vertical space for spice organization
Looks polished and professional in any cabinet
Tons of labels and customization options
❌ Cons:
Drawer slide direction is fixed — not reversible
Screw quality is mediocre
Installation requires precision (and patience)
Overall:
This is a well-designed and space-saving spice rack that delivers on organization and aesthetic. If you're mindful of the fixed drawer direction and take your time during install, it's a great buy for transforming messy cabinets into a neat, labeled setup.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 13, 2025
★★★★★ 5
Great solution to a crowded cabinet
Size: Left Facing, Size: Left Facing
This kit is a game changer. Saves a ton of space in the cupboard, and although there is some "flex" when you pull it out, it really is very stable and holds up well against frequent use. It is super easy to find the spice you're looking for with the easy to read labels, and I think they have a designated label for just about every spice imaginable. Regardless of what cuisine you cook, I think you'll be able to organize your collection in a really aesthetic, high visible way, while reclaiming some cupboard space.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
★★★★★ 5
Love it! Can’t wait to buy a second one!
Size: Left Facing, Size: Left Facing
Worth every penny!! This rack is pricy, but it’s awesome. Definitely wish the price was a little better, but I still plan on buying a second one to fit more of my spices. Super easy to install and the glide feature is really smooth. Bottles and lids are quality material and overall really pretty design. Love that it comes with TONS of spice label options for every spice you could imagine! Fit in my standard depth cabinet that is 12” deep (and I have inset cabinet doors and there was still plenty of room for it). You can easily pull it out and read the labels.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 17, 2026
recommand products
TS-Optics 6" Ritchey-Chrétien Pro RC Telescope 154/1370 mm OTA
259.50
Introductory Astronomy - Dr Keith Holliday
54.00
iOptron AZ Mount Pro GoTo with LiteRoc Tripod
899.50
TS-Optics JUPITER - Refractor Set 70/900mm EQ3-1. Ideal for beginners and kids 7+
199.00
Levenhuk Binoculars Karma PRO 10x42
149.00