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Description
4-(2-(tosylmethyl)acryloyl)benzamide-PEG9-DBCOReferences: Shaunak, S.; et al. Site specific PEGylation of native disulfide bonds in therapeutic proteins Nat. Chem. Biol. (2006), 2, 312 313 DOI: 10. 1038 nchembio786 Keywords: Disulfide Rebridging; Proteins; DBCO; Allyl Sulfones
References:
- Shaunak, S.; et al. Site-specific PEGylation of native disulfide bonds in therapeutic proteins Nat. Chem. Biol. (2006), 2, 312-313 DOI: 10.1038/nchembio786 Keywords: Disulfide Rebridging; Proteins; DBCO; Allyl Sulfones
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4.2 ★★★★★
Based on 2151 reviews
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Product Reviews
★★★★★ 5
Balls
Size: Medium
My dog loves chasing these balls. He seems to love the squeak! They fit the chuck it stick perfectly, and are great replacements for the originals that came with the stick.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 7, 2026
★★★★★ 5
Nice set of balls
Size: Medium
The squeaker quickly became my dog’s favorite ball and has replaced the fuzzy tennis balls. My dog is a nonstop fetcher and these chuck it balls are durable and fun.
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Reviewed in the United States on January 9, 2026
★★★★★ 5
Perfect ball
Size: Medium
Our dog loves these!
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Reviewed in the United States on May 26, 2026
★★★★★ 4
Soild
Size: Medium
The orange and blue ball is perfect. Once start taken because the because the blue noisy one was a little to easy for my dog to start ripping pieces off. Will say most toys do not survive his chewing.
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Reviewed in the United States on January 24, 2026
★★★★★ 5
Aggressive chewer who loves fetch approved!!
Size: Medium, Size: Medium
I highly recommend the Chuck-It brand in general, especially for dogs with an aggressive bite. These balls are awesome and are the most durable balls I’ve bought for my 50 lbs lab mix. He has not been able to break one of them yet and we’ve had a few of the squeaky balls for months. They are a bit pricey but worth it.
The one in the pic has been used for months, lives outside and you can see it’s still in great shape.
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Reviewed in the United States on June 22, 2025
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