Trimethyl borate - ≥98% , CAS No.121-43-7

CAS: 121-43-7 Cat. No.: T104043 Peso molecular: 103.91 Beilstein Registry Number: 1697939 Número EC: 204-468-9
Disponible para pedir
GRADE & PURITY ≥98%
Synonyms
CHEBI:38913 | Trimethyl borate-11B | Boric acid (H3BO3), trimethyl ester | trimethoxy borane | Trimethoxyborane | Urea,N-(cyclohexylmethyl)-N'-cyclopentyl- | trimethyl boric acid | Borester O | MFCD00008346 | Trimethyl borate, purified by redistillation,
Storage
Room temperature,Argon charged
Shipped In
FedEx DG Service
 ·  off list, applied to all prices below.
Size
Estado
Price
Qty
100ml
T104043-100ml
3
15,90US$
500ml
T104043-500ml
3
47,90US$
Enter a quantity for the sizes you want to add.
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Why this grade

≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Room temperature,Argon charged Ships FedEx DG Service 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 25 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Descripción general

Trimethyl borate reacts with a Grignard reagent or organolithium compounds to yield dimethyl boronates, which upon subsequent aqueous acid treatment afford corresponding boronic acids. The resultant boronic acids or esters are useful intermediates in various cross-coupling reactions such as Suzuki coupling and Chan-Lam coupling.It is also used in the preparation of sodium borohydride.

Specifications

Sinónimos
CHEBI:38913 | Trimethyl borate-11B | Boric acid (H3BO3), trimethyl ester | trimethoxy borane | Trimethoxyborane | Urea, N-(cyclohexylmethyl)-N'-cyclopentyl- | trimethyl boric acid | Borester O | MFCD00008346 | Trimethyl borate, purified by redistillation,
Especificaciones y pureza
≥98%
Condiciones de almacenamiento de almacenamiento
Room temperature, Argon charged
Enviado en
FedEx DG Service
Este producto requiere envío en cadena de frío. Los servicios terrestres y otros servicios económicos no están disponibles.
Pureza
≥98%
Nombres e identificadores
Sonrisas canónicasB(OC)(OC)OC
IUPAC Nametrimethyl borate
InChIKeyWRECIMRULFAWHA-UHFFFAOYSA-N
INCHI1S/C3H9BO3/c1-5-4(6-2)7-3/h1-3H3
Isómeros SMILES B(OC)(OC)OC
WGK Alemania 1
RTECS ED5600000
Número ONU 2416
Grupo de embalaje II
Peso molecular 103.91
Beilstein 1697939
Reaxy-Rn 1697939

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.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganic oxygen compounds
ClaseOrganic oxoanionic compounds
SubclassNot available
Intermediate Tree Nodes Not available
Direct ParentOrganic oxoanionic compounds
Alternative Parents Organic metalloid salts  Organooxygen compounds  Hydrocarbon derivatives  
Molecular FrameworkAliphatic acyclic compounds
Substituents Organic borate - Organic metalloid salt - Hydrocarbon derivative - Organic salt - Organooxygen compound - Aliphatic acyclic compound
DescripciónThis compound belongs to the class of organic compounds known as organic oxoanionic compounds. These are organic compounds containing an oxoanion.
External Descriptors borate esters
Estructura 3D
Modelo de Estructura Química Interactiva





Certificados (CoA, COO, BSE/TSE y tabla de análisis)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

28 results found

Lot NumberCertificate TypeFechaArticulo
G2229437Certificate of AnalysisMay 19, 2026 T104043
A2608173Certificate of AnalysisDec 16, 2025 T104043
A2608206Certificate of AnalysisDec 16, 2025 T104043
A2608172Certificate of AnalysisDec 16, 2025 T104043
B2211163Certificate of AnalysisOct 30, 2025 T104043
E2512362Certificate of AnalysisApr 16, 2025 T104043
E2512369Certificate of AnalysisApr 16, 2025 T104043
E2527695Certificate of AnalysisApr 16, 2025 T104043
C2112355Certificate of AnalysisDec 11, 2024 T104043
K2415589Certificate of AnalysisNov 06, 2024 T104043
K2415585Certificate of AnalysisNov 06, 2024 T104043
K2415583Certificate of AnalysisNov 06, 2024 T104043
G2422349Certificate of AnalysisJul 06, 2024 T104043
G2422350Certificate of AnalysisJul 06, 2024 T104043
G2422351Certificate of AnalysisJul 06, 2024 T104043
G2522106Certificate of AnalysisApr 28, 2024 T104043
H2421306Certificate of AnalysisApr 28, 2024 T104043
K2310435Certificate of AnalysisOct 26, 2023 T104043
K2310436Certificate of AnalysisOct 26, 2023 T104043
C2429032Certificate of AnalysisOct 26, 2023 T104043
F2306898Certificate of AnalysisJun 09, 2023 T104043
F2306896Certificate of AnalysisJun 09, 2023 T104043
K22171080Certificate of AnalysisNov 28, 2022 T104043
G2229436Certificate of AnalysisJul 16, 2022 T104043
G2229439Certificate of AnalysisJul 16, 2022 T104043
I2311041Certificate of AnalysisJul 16, 2022 T104043
B2211181Certificate of AnalysisDec 09, 2021 T104043
B2211167Certificate of AnalysisDec 09, 2021 T104043

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Propiedades químicas y físicas
SolubilidadMiscible with tetrahydrofuran, ether, isoporpylamine, hexane and methanol.
Sensibilidadmoisture sensitive
Índice de refracción1.3562-1.3582
Punto de inflamación (°F)17.6 °F
Punto de inflamación (°C)-8℃
Punto de ebullición (°C)67-69°C
Punto de fusión (°C)-29°C
Peso molecular103.920 g/mol
XLogP3
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count3
Rotatable Bond Count3
Exact Mass104.064 Da
Monoisotopic Mass104.064 Da
Topological Polar Surface Area27.700 Ų
Heavy Atom Count7
Formal Charge0
Complexity31.700
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Preguntas frecuentes y artículos
Citations of This Product
Referencias
1. Longli Ma, Xuanyang Li, Jian Tan, Zhan Fang, Zhu Liu, Yuan Wang, Chuming Ye, Pengshu Yi, Mingxin Ye, Jianfeng Shen.  (2023)  Anion-Immobilized Gel Polymer Electrolyte with a High Ion Transference Number for High-Performance Lithium/Sodium Metal Batteries.  ACS Applied Materials & Interfaces,      [PMID:38041638] [10.1021/acsami.3c13883]
2. Chaoze Liu, Zheng Zhou, Jiawei Ji, Yaxin Gu, Song Yan, Shaobo Yang, Rongjuan Zhang, Zhenya Liu, Yanming Xue, Chengchun Tang.  (2023)  Controllable preparation of boron nitride microspheres and their epoxy-based thermoconductive composites.  CERAMICS INTERNATIONAL,      [PMID:] [10.1016/j.ceramint.2023.05.258]
3. Zexia Li, Jingwen Yang, Hejun Gao, Jiaxiao Qiao, Wei Qiao, Peng Wang, Jun Zhang, Chengchun Tang, Yanming Xue.  (2023)  Boron Nitride Microspheres via Pyrolysis of Polymerized Precursors.  ACS Omega,      [PMID:37151536] [10.1021/acsomega.3c00313]
4. Dewei Qiu, Ping Zhou, Jiawei Kang, Zhijun Chen, Zhiyong Xu, Hanwen Yang, Jun Tao, Fanrong Ai.  (2022)  ZnO nanoparticle modified chitosan/borosilicate bioglass composite scaffold for inhibiting bacterial infection and promoting bone regeneration.  Biomedical Materials,  17  (6): (065023).  [PMID:36394277] [10.1088/1748-605X/ac99c5]
5. Binghua Zhou, Ying Zhou, Lujie Lai, Ziling Chen, Jiajia Li, Yunliang Jiang, Jian Liu, Zhipeng Wang, Zhigang Xue.  (2021)  Fabrication of Borate-Based Porous Polymer Electrolytes Containing Cyclic Carbonate for High-Performance Lithium Metal Batteries.  ACS Applied Energy Materials,      [PMID:] [10.1021/acsaem.1c01724]
6. Jianhui Li, Yuqing Liao, Weizhen Fan, Zifei Li, Guanjie Li, Qiankui Zhang, Lidan Xing, Mengqing Xu, Weishan Li.  (2020)  Significance of Electrolyte Additive Molecule Structure in Constructing Robust Interphases on High-Voltage Cathodes.  ACS Applied Energy Materials,      [PMID:] [10.1021/acsaem.0c00168]
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8. Li Erpeng, Li Wenqin, Li Linchang, Zhang Hao, Shen Chao, Wu Zihua, Zhang Weiwei, Xu Xiaojia, Tian He, Zhu Wei-Hong, Wu Yongzhen.  (2019)  Efficient p-i-n structured perovskite solar cells employing low-cost and highly reproducible oligomers as hole transporting materials.  Science China-Chemistry,  62  (6): (767-774).  [PMID:] [10.1007/s11426-018-9452-9]
9. Linfeng Chen, Xike Tian, Yong Li, Chao Yang, Liqiang Lu, Zhaoxin Zhou, Yulun Nie.  (2019)  An AIE dye based smartphone and LDA integrated portable, intelligent and rapid detection system as trace water indicator and cyanide detector.  DYES AND PIGMENTS,      [PMID:] [10.1016/j.dyepig.2019.03.008]
10. Jinfang Zhang, Cheng Ma, Hua Hou, Xiaofeng Li, Libao Chen, Douglas G. Ivey, Weifeng Wei.  (2018)  A star-shaped solid composite electrolyte containing multifunctional moieties with enhanced electrochemical properties for all solid-state lithium batteries.  JOURNAL OF MEMBRANE SCIENCE,      [PMID:] [10.1016/j.memsci.2018.01.063]
11. Wen-Ming Wan, Shun-Shun Li, Dong-Ming Liu, Xin-Hu Lv, Xiao-Li Sun.  (2017)  Synthesis of Electron-Deficient Borinic Acid Polymers with Multiresponsive Properties and Their Application in the Fluorescence Detection of Alizarin Red S and Electron-Rich 8-Hydroxyquinoline and Fluoride Ion: Substituent Effects.  MACROMOLECULES,      [PMID:] [10.1021/acs.macromol.7b01002]
12. Guilong Zhang, Shiyao Lu, Junchao Qian, Kai Zhong, Jianming Yao, Dongqing Cai, Zhiliang Cheng, Zhengyan Wu.  (2015)  Magnetic Relaxation Switch Detecting Boric Acid or Borate Ester through One-Pot Synthesized Poly(vinyl alcohol) Functionalized Nanomagnetic Iron Oxide.  ACS Applied Materials & Interfaces,      [PMID:26171794] [10.1021/acsami.5b04863]
13. Hongxia Peng, Yiwang Chen, Lie Chen, Xiaohui He, Fan Li.  (2010)  Luminescent mesogen jacketed poly(1-alkyne) bearing lateral terphenyl with hexyloxy tail.  JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,  48  (24): (5679-5692).  [PMID:] [10.1002/pola.24361]
14. Qiyue Wang, Sirui Cui, Dao Shi, Pan Tao, Chencheng Zhang, Fang Wang, Peihua Lin, Fangyuan Li, Daishun Ling.  (2024)  A Neuronal Signal Sorting and Amplifying Nanosensor for EEG-Concordant Imaging-Guided Precision Epilepsy Ablation.  ADVANCED MATERIALS,      [PMID:39676438] [10.1002/adma.202408864]
15. Jie Chen, Rui Feng, Peng Su, Tong Zhou, Lijie Dong.  (2025)  Highly linear wearable ionic gel based on self-assembled discoid liquid crystal towards human motion monitoring.  Journal of Materials Chemistry C,      [PMID:] [10.1039/D4TC04899G]
16. Xing-Ying Zheng, Tao Li, Hua-Wen Cai, Xin-Hui Wang, Xiao-Li Sun, Wen-Ming Wan.  (2024)  Polymerization-induced emission of borinic acid towards stimuli-responsive luminescent polymers.  POLYMER,      [PMID:] [10.1016/j.polymer.2024.126996]
17. Sen Xue, Qian Wei, Rui Zhang, Tianyu Zhang, Gaigai Duan, Xiaoshuai Han, Kunming Liu, Jingquan Han, Shuijian He, Shaohua Jiang.  (2024)  Spiroborate-based three dimensional covalent organic framework for effective adsorption and separation of organic dyes.  SEPARATION AND PURIFICATION TECHNOLOGY,      [PMID:] [10.1016/j.seppur.2024.126941]
18. Jiawei Li, Junren Xiang, Ge Yi, Zhijia Hu, Xiao Liu, Rong Chen.  (2024)  Stabilization of the surface and lattice structure for LiNi0.83Co0.12Mn0.05O2via B2O3 atomic layer deposition and post-annealing.  Energy Advances,  (7): (1688-1696).  [PMID:] [10.1039/D4YA00206G]
19. Jingyi Xiong, Jiawei Zhang, Xufan Zheng, Tianyu Hu, Huimin Xiang, Yuda Li, Biao Xiao, Xunchang Wang, Renqiang Yang.  (2025)  Fluorescence sensing of nitro explosives based on deep learning.  Cell Reports Physical Science,      [PMID:] [10.1016/j.xcrp.2025.102690]
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