GRADE & PURITYAnimal Free?Animal-free — produced without animal-derived components to reduce contamination risk. Use in biomanufacturing and culture avoiding animal-origin material.Purified grade?Purified grade — refined to remove major impurities for cleaner results. Use when crude material would introduce unwanted interference.≥90%from Soybean
Animal Free, purified grade, ≥90%, from Soybean Animal Free,Purified grade for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
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Storage & shipping
Store at 2-8°C Ships Wet ice Check lot-specific COA for exact specifications.
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Quality documents
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
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Literature proof
Cited in 5 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Overview
The soybean trypsin inhibitor was first crystallized by Kunitz in 1945 and is one of several such inhibitors found in soybeans. Its molecular weight is 21,500 ± 800 daltons and the optimum pH is 7.0. Soybean inhibitor inhibits trypsin mole-for-mole and to a lesser extent chymotrypsin. Enzyme activity definition： The activity of the inhibitors is expressed as the amount of twice crystallized trypsin (Aladdin Item: T128774) inhibited per milligram of inhibitor. 1mg trypsin ≥180 TAME units, 10,350 BAEE units, 3,450 USP/NF units.
Specifications
Synonyms
SBTI
Specifications & Purity
Animal Free, purified grade, ≥90%, from Soybean
Storage
Store at 2-8°C
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Grade
Animal Free, Purified grade
Action Type
INHIBITOR
Purity
≥90%
Names and Identifiers
WGK Germany
3
Alternate CAS
9035-81-1
Documentation
📋 Safety Data Sheet (SDS)
Comprehensive hazard, handling, storage, and regulatory compliance document.
1.Fanping Shi, Lei Wang, Yan Li, Yu Zhang, Xingguang Su. (2017) A simple “turn-on” detection platform for trypsin activity and inhibitor screening based on N-acetyl-l-cysteine capped CdTe Quantum Dots. SENSORS AND ACTUATORS B-CHEMICAL, [PMID:][10.1016/j.snb.2017.09.087]
2.Wei-Xian Wang, Yuqing Wu, Hong-Wei Li. (2017) Regulation on the aggregation-induced emission (AIE) of DNA-templated silver nanoclusters by BSA and its hydrolysates. JOURNAL OF COLLOID AND INTERFACE SCIENCE, [PMID:28646761][10.1016/j.jcis.2017.06.033]
3.Xiu Huang, Yong Li, Zhao Shu, Li Huang, Qian Liu, Guibin Jiang. (2024) High-Efficiency Degradation of PET Plastics by Glutathione S-Transferase under Mild Conditions. ENVIRONMENTAL SCIENCE & TECHNOLOGY, [PMID:39012182][10.1021/acs.est.4c02132]
4.Fan Yanan, Xu Qixiang, Ren Keyu, Zhai Mengge, Xing Guozheng, Song Yishan, Zhu Yongheng. (2024) Research on pH-responsive Antibacterial Materials Using Citral-modified Zinc Oxide Nanoparticles. Food Quality and Safety, [PMID:][10.1093/fqsafe/fyae010]
5.Xiu Huang, Li Huang, Qian Wang, Qiurong He, Zunzhen Zhang, Qian Liu, Guibin Jiang. (2025) High-efficiency enzymatic biodegradation of polypropylene-based melt-blown fabric debris. Chemical Science, [PMID:40708876][10.1039/D5SC03097H]
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