HOBt (anhydrous) |
Catalog No.GA10633
One-Click Copy Product Info
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HOBt (anhydrous) is a heterocycle most often used as a catalytic or stoichiometric agent to accelerate nucleophilic acyl substitution reactions, particularly amidations.
Products are for research use only. Not for human use. We do not sell to patients.
Cas No.: 2592-95-2
Sample solution is provided at 25 µL, 10mM.
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HOBt (anhydrous) is a heterocycle most often used as a catalytic or stoichiometric agent to accelerate nucleophilic acyl substitution reactions, particularly amidations [1]. HOBt is able to propagate a detonation when a strong booster is used [2]. HOBt plays a significant role in reducing the racemization during peptide synthesis and is regularly used as a coupling additive [3]. In the H2O-THF solvent, HOBt can be used as an activator to synthesize small peptides without the use of protecting groups and shorten the reaction time[4].
References:
[1] Treitler D S, Marriott A S, Chadwick J, et al. Mutagenic impurities in 1-hydroxybenzotriazole (HOBt)[J]. Organic Process Research & Development, 2019, 23(11): 2562-2566
[2] Wehrstedt K D, Wandrey P A, Heitkamp D. Explosive properties of 1-hydroxybenzotriazoles[J]. Journal of hazardous materials, 2005, 126(1-3): 1-7.
[3] Mali S M, Kumar M G, Katariya M M, et al. HBTU mediated 1-hydroxybenzotriazole (HOBt) conjugate addition: synthesis and stereochemical analysis of β-benzotriazole N-oxide substituted γ-amino acids and hybrid peptides[J]. Organic & Biomolecular Chemistry, 2014, 12(42): 8462-8472.
[4] Herrera-Guzmán K, Jaime-Vasconcelos M Á, Torales E, et al. A practical method for the synthesis of small peptides using DCC and HOBt as activators in H 2 O–THF while avoiding the use of protecting groups[J]. RSC advances, 2024, 14(54): 39968-39976.
| Cas No. | 2592-95-2 | SDF | |
| Chemical Name | 1-hydroxybenzotriazole | ||
| Canonical SMILES | C1=CC=C2C(=C1)N=NN2O | ||
| Formula | C6H5N3O | M.Wt | 135.1 |
| Solubility | ≥ 6.76mg/mL in DMSO, ≥ 22.4 mg/mL in EtOH with ultrasonic, ≥ 4.09 mg/mL in Water with ultrasonic | Storage | Store at 2-8°C |
| General tips | Please select the appropriate solvent to prepare the stock solution according to the
solubility of the product in different solvents; once the solution is prepared, please store it in
separate packages to avoid product failure caused by repeated freezing and thawing.Storage method
and period of the stock solution: When stored at -80°C, please use it within 6 months; when stored
at -20°C, please use it within 1 month. To increase solubility, heat the tube to 37°C and then oscillate in an ultrasonic bath for some time. |
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| Shipping Condition | Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request. | ||
| Prepare stock solution | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 7.4019 mL | 37.0096 mL | 74.0192 mL |
| 5 mM | 1.4804 mL | 7.4019 mL | 14.8038 mL |
| 10 mM | 740.2 μL | 3.701 mL | 7.4019 mL |
Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)
g
μL
Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)
Calculation results:
Working concentration: mg/ml;
Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )
Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL saline, mix and clarify.
Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.
Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.
3. All of the above co-solvents are available for purchase on the GlpBio website.
Quality Control & SDS
- View current batch:
- Purity: >99.50% Appearance: A solid
- COA (Certificate of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Average Rating: 5 (Based on Reviews and 30 reference(s) in Google Scholar.)