1-Hydroxy-7-azabenzotriazole - 10mM in DMSO , CAS No.39968-33-7

CAS: 39968-33-7 Cat. No.: H660500 Molecular Weight: 136.11 EC Number: 609-760-3
AVAILABLE TO ORDER
GRADE & PURITY 10mM in DMSO
Storage
Store at -80°C
Shipped In
Dry ice packs + Cold packs
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Size
Status
Price
Qty
1ml
H660500-1ml
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$1,142.90

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Why this grade

10mM in DMSO for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Store at -80°C Ships Dry ice packs + Cold packs 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 6 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Specifications & Purity
10mM in DMSO
Storage
Store at -80°C
Shipped In
Dry ice packs + Cold packs
This product requires cold chain shipping. Ground and other economy services are not available.
Names and Identifiers
Isomeric SMILES C1=CC2=C(N=C1)N(N=N2)O
WGK Germany 3
UN Number 1993
Molecular Weight 136.11
Reaxy-Rn 1211115
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1211115&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:
Chemical and Physical Properties
Refractive Index1.439
Flash Point(°F)58 °C
Flash Point(°C)58°C
Melt Point(°C)213-216°C
Documents & Articles
From High Reactivity to Comprehensive Evaluation: Using CTSOAt as an Example to Understand the Design Logic of New Coupling Reagents
From Analytical Instrument to Synthetic Platform: A New Strategy for Reconstructing Automated Flow Solid-Phase Peptide Synthesis with Standard Analytical HPLC
TCFH–NMI Amidation in Highly Aqueous Media: Research Value, Methodological Understanding, and Experimental Insights
A New Balance in Coupling Reagents: How DMT-TU Balances Reactivity, Racemization Control, and Thermal Hazard
The Positioning of TBTU in Practice: Racemization Risk, Extended Uses, and Selection Criteria
From “High Yield” to “Configuration Retention”: Activation-Stage Risks, Route Differences, and Selection Principles for Coupling Systems
The Methodological Value of HATU in Difficult Couplings: Reactivity Advantages, Stereochemical Retention, and Condition Management
The Methodological Value of Boc-Oxyma: Low-Racemization Coupling, Route Continuity, and Extended Applications
Low Racemization in Peptide Synthesis Is Not Just About Reagent Choice: Stereochemical Risk During the Activation Stage and Practical Strategies for Experimental Control
The Methodological Value of TCFH: Advantages in Challenging Amidation and the Switching Logic of Carboxylic Acid Activation Pathways
Ynamide Coupling Reagents: From Low-Epimerization Activation Pathways to More Practically Usable N→C Inverse Peptide Synthesis
Decision Logic for Peptide Synthesis Routes: Applicability and Criteria for Choosing among SPPS, LPPS, and Recombinant Expression
Decision Logic for Selecting Coupling Reagents in Amide Bond Formation: Activation Pathways, Side Reactions, Epimerization, Workup, and Safety
Experimental Assessment of HOPO in Carbodiimide-Mediated Amide Coupling: Low-Racemization Control, Application Scenarios, and Process Considerations
Experimental Judgment in Oxyma Coupling Systems: Coupling Efficiency, Racemization Control, and the HCN Risk in DIC-Based Systems
Experimental Judgment for TFPN in Carboxylic Acid Activation: Suitable Scenarios, Intermediate Distribution, and Nucleophile Compatibility
How to Troubleshoot Abnormal Impurities in Peptide Synthesis? Locating Process Issues Through Amino-Related Side Reactions
Peptide Intermediates Difficult to Dissolve and Separate? Route Design and Workup Strategies for Tag-Assisted Liquid-Phase Peptide Synthesis (TAG-LPPS)
Citations of This Product
References
1. Xiaohui Feng, Na Liu, Youyou Yang, Shengnan Feng, Juan Wang, Qingshi Meng.  (2022)  Isotope-Coded Chemical Derivatization Method for Highly Accurately and Sensitively Quantifying Short-Chain Fatty Acids.  JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY,      [PMID:35549180] [10.1021/acs.jafc.2c01836]
2. Ye-wei Zhang, Qing Zhang, Yu-xing Peng, Chen Wang, Xiang-dong Chang, Guo-an Chen.  (2022)  Tribological behavior of octadecylamine functionalized graphene oxide modified oil for wire rope in mine hoist.  WEAR,      [PMID:] [10.1016/j.wear.2022.204273]
3. Yang Zhang, Yan Qiao, Xin Ding, Ya Zhang, Xuemei Su, Lei Zhang, Qian Zhou, Guangguo Tan.  (2025)  Quantitative method for intestinal short chain fatty acids based on stable isotope labeling combined with liquid chromatography-mass spectrometry.  JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS,      [PMID:40081306] [10.1016/j.jpba.2025.116798]
4. Yuanhong Zhou, Ziyuan Zong, Xiaofang Liu, Xiang Chen, Zhifeng Hao, Mohamed S. Selim, Jian Yu.  (2025)  Multifunctional Chitosan Hydrogel Integrated with Penicillin-Grafted MXene for Synergistic Antibacterial Application.  ACS Applied Bio Materials,      [PMID:40959970] [10.1021/acsabm.5c01367]
5. Shuangshou Wang, Lu Zhang, Qiwen Jin, Zhongqiu Xu, Jiayi Zhao, Yuwen Ding, Wenzhi Li, Peng Lin, Jing Gu, Qi Zhang, Yang Chen, Hongmei Chen, Tingxuan Yan.  (2022)  Filter paper-based colorimetric analysis: An instrument-free strategy for semiquantitative naked-eye detection of food colorants.  FOOD CHEMISTRY,      [PMID:35551021] [10.1016/j.foodchem.2022.133087]
6. Bilal Ul Amin, Haojie Yu, Li Wang, Ahsan Nazir, Shah Fahad, Fazal Haq, Sahid Mahmood, Md Alim Uddin, Tarig Elshaarani, Di Shen.  (2020)  Synthesis of Ferrocene-based Esters as Burning Rate Catalysts and their Anti-migration Study.  ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE,  646  (20): (1671-1678).  [PMID:] [10.1002/zaac.202000253]
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