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Description
Urea Agar BaseUrea Agar Base Urea Agar Base is used with added agar to detect urease activity by the Enterobacteriaceae. This lightly buffered medium contains Urea and Phenol Red as pH indicator. Urease activity alkalinizes the environment, thus producing a color shift from pale yellow to pink red. Gelatin Peptone promotes rapid growth of enteric Gram negative microorganisms, thus allowing for a reduction in the incubation time. In organisms that hydrolyze Urea
Urea Agar Base
Urea Agar Base is used with added agar to detect urease activity by the Enterobacteriaceae. This lightly buffered medium contains Urea and Phenol Red as pH indicator. Urease activity alkalinizes the environment, thus producing a color shift from pale yellow to pink-red. Gelatin Peptone promotes rapid growth of enteric Gram-negative microorganisms, thus allowing for a reduction in the incubation time. In organisms that hydrolyze Urea slowly, Dextrose simulates urease activity. Agar is the gelifying agent. There is a choice of 3 sizes - 500g, 2kg, and 10kg.
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Exchange/Return Notes
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4.2 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 4
Good dress shirts
Size: 17"-17.5" Neck 36"-37" Sleeve, Color: Graphite
Good fitting, well built and comfortable.
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Reviewed in the United States on April 9, 2026
★★★★★ 5
Works for me!
Size: 15"-15.5" Neck 34"-35" Sleeve, Color: Hazy Blue
I needed a couple shirts for wearing under a sport coat, these will do nicely. I got them in Blue and Grey. As with all dress shirts, I’ll have to wash them to get the wrinkles out, I hit them with my portable steamer as well. They aren’t think enough to hold a good ironing unless you use spray starch, but for $20 I’m fine with that. The tag on the shirts said $60, I would be pretty disappointed if I actually paid $60 for them; but for $20 the value is good.
I’m 5’8” and 180, so got the Medium 15/15 1/2 Regular fit, it’s a great fit for me. They came out of the wash fine, and are soft to the touch. I would expect them to wear as expected for a $20 shirt, and think the durability will be fine.
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Reviewed in the United States on September 29, 2025
★★★★★ 5
Very Nice Dress Shirt for business Plus!
Size: 15"-15.5" Neck 32"-33" Sleeve, Color: White
My husband was pleasantly surprised as we never would have purchased a dress shirt on Amazon as never considered clothing as something marketed on Amazon. Gave it a try and everything was good.....fit, length, and fabric.
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Reviewed in the United States on February 10, 2026
★★★★★ 3
Okay overall.
Size: 15"-15.5" Neck 32"-33" Sleeve, Color: Pink, Size: 15"-15.5" Neck 32"-33" Sleeve, Color: Pink
It's an okay shirt with some issues. For one, it runs pretty big. Glad I got a medium as it fits me like a large which is my usual size. As for the sleeves, I have pretty average length arms so the 32-33" fits me perfectly just like on the model in the images.
Second issue is the shirt came packaged with a bunch of needle pins that left some small holes/marks in the front and back bottom of the shirt. They're not super noticeable unless you know they are there.
Lastly, the color in the image is duller than in person. In natural lighting it's a more vibrant pink. Comes pretty wrinkly out of the package. Needs ironing or wrinkle releaser.
One thing that would make it better is if it had a pocket, but I only really intend to layer it under a jacket so I'm not worried about it.
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Reviewed in the United States on January 9, 2026
★★★★★ 5
Perfect
Size: 16"-16.5" Neck 34"-35" Sleeve, Color: White
Perfect fit, has a cotton look and I recommend
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Reviewed in the United States on March 23, 2026
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