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View our newest products for your classroom and lab.
Browse the latest tools and resources for physical and earth sciences at Carolina. Carolina Biological Supply has everything you need to complete your classroom environmental science experiments.
Browse the latest tools and resources for life sciences at Carolina. Carolina Biological Supply has everything you need to complete your classroom life science activities and experiments.
Browse the latest lab supplies and equipment for all your science lab essentials. Shop Carolina's variety of lab equipment including microscopes, glassware, dissection supplies, lab furniture and more.
For a quarter century, Carolina Biological Supply has been committed to bringing biotechnology into the classroom.
Carolina makes DNA gel electrophoresis easy when studying forensics or genetics. There's a simple set up with consistent results.
DNA Learning Center resources are the best in scientific educational materials. Kits and materials for educators by educators.
Outift your Biotechnology lab with Carolina Quality. A wide product selection—from gel chambers to power supplies, centrifuges and pipets.
Building Blocks of Science Elementary Curriculum offers kits that are affordable and easy to implement in your classroom.
We offer top-notch chemistry supplies and AP® Chemistry products, backed by our expert technical support.
Choose from over 850 chemical products in chemical grades, sizes and concentrations to meet your needs.
Carolina offers the highest quality kits for a hands-on approach within AP Chemistry classrooms. We provide products designed for the new and old curriculum.
pH testing made easy with all the supplies you need for your biology and chemistry classrooms or laboratory practices.
Carolina Science Online®, our new eLearning platform, brings your classroom to life with resources for all ages.
Interactive, engaging and elementary age appropriate. Quality digital science resources and outstanding support for STEM concpets.
Stale lesson plans? Try a fresh approach with these interactive and engaging lessons. Make difficult concepts easy to learn!
Stimulating digital resorces for the high school classroom. eBooks and acitivities that will help students remember what they are learning!
Carolina is proud to offer one of the most extensive lines of lab supplies and equipment in the industry.
Quality selection of science lab glassware designed to address accuracy and safety. Affordable price with superior performance.
We offer a full range of dissecting equipment to fit all your lab needs. There are sets available for all skill levels or can be customized.
Carolina is your quality source for a well-equipped lab. Take time to view our high quality science lab equipment that has proven durability to handle any lab activity.
Carolina covers the world of life science with everything from slides and kits to Agricultural and Vet Science.
We have kits for new and traditional AP Biology labs. Choose from our kits, follow a college board lab, or design your own with our wide variety of equipment and supplies.
Prepare your students for medical and lab tech careers with Carolina's wide range of equipment, kits and models.
Carolina offers a variety of resources and products to help your students delve into the emerging area of Genetics.
For over 80 years, Carolina has been providing the highest-quality living organisms and cultures available.
Our butterflies can be purchased at every stage to help demonstrate their beautiful life cycle to students.
Vast selection of ready to use biological media to meet diverse needs. In stock and ready to ship!
Carolina plants are a great tool for teaching cell respiration and photosynthesis. Selection includes aquatic and classroom plants.
Carolina's extensive assortment of compound and stereomicroscopes span virtually all grade levels and applications.
Popular corded compound microscopes and cordless microscopes for elementary to advanced use. We have the compound microscope you are looking for!
Digital microscopes are great for large classroom computer combined instruction. Students can take images, videos, and more.
Stereomicroscopes show 3D images vs. flat images and are easier to focus and use. They are great for first tme student use.
Get your students inspired with high school physical science kits, robotics, Carolina ChemKits, and much more.
Teach long term earth changes in real time and study the atmosphere, weather and climate and their impact on sustaining life.
One stop for all your classical mechanics science and energy education needs. Exciting activities that make science active and fun!
One stop for all your classical mechanics science and energy education needs. Exciting activities that make science active and fun!
Carolina has the best specimens available, along with dissecting supplies, instruments, and much more.
Carolina's Perfect Solution specimens are a safe, non-toxic alternative to Formalin. Carolina's innovative, proprietary tissue fixative produces superior specimens with life-like tissue texture and color.
Carolina provides owl pellet products that are heat sterilized and easy to use for students of all ages. Excellent for hands-on, inquiry-based learning.
For over 80 years, Carolina has provided superior non-mammal specimens that engage students in hands-on dissecting experiments.
Carolina's Young Scientist® Dissection Kits provide an introductory-level dissection activity. This is a great way to learn basic anatomy.
Carolina provides owl pellet products that are heat sterilized and easy to use for students of all ages. Excellent for hands-on, inquiry-based learning.
Carolina is your one-stop shop for insects in the classroom. For over 85 years we have been supplying teachers with butterflies, ladybugs, praying mantis, ants and more.
K–8 inquiry-based, hands-on science curriculum that paves the way to deep understanding of phenomena through 3-dimensional learning.
Moving to NGSS? Begin with STC-Kindergarten™, written explicitly for these standards. STC for Grades 1–5 integrates the three dimensions of NGSS and engineering design using real-world applications.
ALL NEW for Middle School from the Smithsonian! Teaching NGSS is more than checking off standards. STCMS™ immerses students in 3-dimensional learning rooted in phenomena and engineering design.
Thank you for your continued use of the STC Program. Here you will find previous editions materials for 2nd Edition STCElementary, STC Secondary, and STC/MS.
Enjoy hundreds of creative and effective activities for elementary, middle, high school, and college students. Activities cover all disciplines and numerous subjects and topics.
Looking for inexpensive ways to help students understand and appreciate how much information the periodic table provides? In these 2 activities, students discover for themselves several trends associated with the elements on the periodic table.
Photosynthesis and cellular respiration aren't magic, but to your students they can seem to be. Hands-on experiments are a great way to help them understand the science behind the "magic", especially for kinesthetic learners.
We've put together some creative activities for addressing atomic theory that can help you engage your students. Most are low or no cost and are varied enough to appeal to students with different learning styles.
CellCraft is a realistic cellular simulation that challenges players to learn about and manipulate a cell and its various components in order to survive.
Stay up to speed with innovative new ideas and ways to make the most out of your classroom teaching experience.
Owl pellets offer an excellent opportunity for students at all grade levels to engage in hands-on, inquiry-based learning.
Get a crash course on Fast Plants, including many of the key science concepts that are covered by these amazing plants.
Learn how to make popular reagents, pH indicators, stains, and solutions; review some of their uses and find all the products you need to get started in your own classroom.
Developed by teacher request, the Carolina LabSheets offer all the details to perform a specific lab activity. Handy student LabSheets are provided for your convenience too!
Get help teaching complex techniques, setting up Carolina products, and gain useful tips before your class.
Keep your classroom or lab safe throughout the schoolyear with lots of helpful tips, hints, and safety techniques.
Use this safety checklist as a handout to acquaint students with the safety do’s and don’ts in the laboratory.
This handy article covers the essential topics for storing your chemicals, including storage area preparation, chemical organization, chemical segregation, and more.
Learn how to quickly assess and handle chemical accidents and avoid dangerous situations in your laboratory. Get started with these general guidelines.
Caring for your living organisms is critical to your success in the classroom. Find Care Sheets for our organisms and get prepared before your shipment arrives.
Complete care instructions and tips for freshwater fish
Complete care instructions and tips for daphnia
Complete care instructions and tips for Protozoa and Invert
These brief product videos bring Carolina's most popular products to life.
Browse sample pages from some of our most popular kits.
View sample pages from the teacher’s manual for the Carolina Coriolis Effect and Atmospheric Circulation Kit.
Aqueous solutions may be slightly hazy or turn yellow in light
Formula: C19H15CIN4
Formula Wt.: 334.82
CAS: 298-96-4
Storage Code: Green—general chemical storage
Synonym: TTC
2,3,5-Triphenyl Tetrazolium Chloride, Laboratory Grade, 10 g
Item #896932
2,3,5-Triphenyl Tetrazolium Chloride, Laboratory Grade, 5 g
Item #896930
Formula: C19H15CIN4
Formula Wt.: 334.82
CAS: 298-96-4
Storage Code: Green—general chemical storage
Synonym: TTC
© Carolina Biological Supply Company
2700 York Road, Burlington, NC 27215-3398 • 800.334.5551
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