Trimethyl orthoformate - ≥98% , CAS No.149-73-5

CAS: 149-73-5 Cat. No.: T104064 Molecular Weight: 106.12 Beilstein Registry Number: 969215 EC Number: 205-745-7 PubChem CID: 9005
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
MFCD00008483 | trimethoxy methane | CH(OMe)3 | PYOKUURKVVELLB-UHFFFAOYSA- | Trimethylester kyseliny orthomravenci [Czech] | trimethyl ortho formate | LS-13013 | Methoxymethylal | NSC 147479 | AKOS000121043 | AMY41181 | TRIMETHYL ORTHOFORMATE [HSDB] | Trim
Storage
Room temperature,Argon charged
Shipped In
FedEx DG Service
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Size
Status
Price
Qty
100ml
T104064-100ml
3
$11.90
500ml
T104064-500ml
3
$38.90
100g
T104064-100g
3
$12.90
500g
T104064-500g
2
$42.90
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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 20 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Trimethyl orthoformate is an effective solvent for thallium(III) nitrate-mediated oxidations.It undergoes acid catalyzed reaction with 6-(N-D-ribitylanilino) uracils to form 8-demethyl-8-hydroxy-5-deazariboflavins.
Trimethyl orthoformate was used as dehydrating agent in the preparation of surface-modified colloidal silica nanoparticles.

Specifications

Synonyms
MFCD00008483 | trimethoxy methane | CH(OMe)3 | PYOKUURKVVELLB-UHFFFAOYSA- | Trimethylester kyseliny orthomravenci [Czech] | trimethyl ortho formate | LS-13013 | Methoxymethylal | NSC 147479 | AKOS000121043 | AMY41181 | TRIMETHYL ORTHOFORMATE [HSDB] | Trim
Specifications & Purity
≥98%
Storage
Room temperature, Argon charged
Shipped In
FedEx DG Service
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥98%
Names and Identifiers
Canonical SmilesCOC(OC)OC
IUPAC Nametrimethoxymethane
InChIKeyPYOKUURKVVELLB-UHFFFAOYSA-N
INCHI1S/C4H10O3/c1-5-4(6-2)7-3/h4H,1-3H3
Isomeric SMILES COC(OC)OC
WGK Germany 1
RTECS RM6650000
PubChem CID 9005
UN Number 3272
Molecular Weight 106.12
Beilstein 969215

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.

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📊 Datasheet

Quick-reference summary of product specifications and applications.

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

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Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganic oxygen compounds
ClassOrganooxygen compounds
SubclassOrtho esters
Intermediate Tree Nodes Not available
Direct ParentOrtho esters
Alternative Parents Carboxylic acid orthoesters  Hydrocarbon derivatives  
Molecular FrameworkAliphatic acyclic compounds
Substituents Ortho ester - Carboxylic acid orthoester - Orthocarboxylic acid derivative - Hydrocarbon derivative - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as ortho esters. These are compounds having the general structure RC(OR')3 ( R' not H), or the structure C(OR')4 ( R' not H).
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Certificates(CoA,COO,BSE/TSE and Analysis Chart)
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.

36 results found

Lot NumberCertificate TypeDateItem
I2205526Certificate of AnalysisJun 15, 2026 T104064
F2601213Certificate of AnalysisMay 26, 2026 T104064
F2601212Certificate of AnalysisMay 26, 2026 T104064
F2601203Certificate of AnalysisMay 26, 2026 T104064
C2215369Certificate of AnalysisDec 10, 2025 T104064
C2216007Certificate of AnalysisDec 10, 2025 T104064
K2513191Certificate of AnalysisNov 06, 2025 T104064
K2513166Certificate of AnalysisNov 06, 2025 T104064
K2513165Certificate of AnalysisNov 06, 2025 T104064
G2108332Certificate of AnalysisApr 03, 2025 T104064
A2122445Certificate of AnalysisDec 19, 2024 T104064
L2411838Certificate of AnalysisNov 30, 2024 T104064
L2411836Certificate of AnalysisNov 30, 2024 T104064
L2411835Certificate of AnalysisNov 30, 2024 T104064
D2428463Certificate of AnalysisMar 16, 2024 T104064
D2428464Certificate of AnalysisMar 16, 2024 T104064
A2431112Certificate of AnalysisJan 25, 2024 T104064
A2431113Certificate of AnalysisJan 25, 2024 T104064
A2431115Certificate of AnalysisJan 25, 2024 T104064
J2410638Certificate of AnalysisJan 25, 2024 T104064
F2306392Certificate of AnalysisMay 18, 2023 T104064
F2306393Certificate of AnalysisMay 18, 2023 T104064
F2306394Certificate of AnalysisMay 18, 2023 T104064
F2306395Certificate of AnalysisMay 18, 2023 T104064
E2304429Certificate of AnalysisDec 13, 2022 T104064
K2514103Certificate of AnalysisDec 13, 2022 T104064
L2227038Certificate of AnalysisDec 13, 2022 T104064
L2227039Certificate of AnalysisDec 13, 2022 T104064
L2227040Certificate of AnalysisDec 13, 2022 T104064
L2227079Certificate of AnalysisDec 13, 2022 T104064
I2205524Certificate of AnalysisAug 15, 2022 T104064
I2205525Certificate of AnalysisAug 15, 2022 T104064
I2205527Certificate of AnalysisAug 15, 2022 T104064
H1810182Certificate of AnalysisJun 17, 2022 T104064
C2216048Certificate of AnalysisFeb 28, 2022 T104064
C2216047Certificate of AnalysisFeb 28, 2022 T104064

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Chemical and Physical Properties
SolubilitySoluble in water, alcohol, and ether.
SensitivityMoisture Sensitive
Refractive Index1.379
Flash Point(°F)48.2 °F
Flash Point(°C)13℃
Boil Point(°C)101°C
Melt Point(°C)-53°C
Molecular Weight106.120 g/mol
XLogP30.200
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count3
Rotatable Bond Count3
Exact Mass106.063 Da
Monoisotopic Mass106.063 Da
Topological Polar Surface Area27.700 Ų
Heavy Atom Count7
Formal Charge0
Complexity28.400
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
Documents & Articles
Citations of This Product
References
1. Xinsheng Tang, Tursun Abdiryim, Ruxangul Jamal, Xiong Liu, Fangfei Liu, Feng Xu, Abdukeyum Abdurexit, Qian Cheng, Nawrzhan Serkjan, Shuyue Xie, Yiming Liu.  (2023)  Photovoltaic–Pyroelectric coupled effect enhanced photo-responsivity of a p-n heterojunction Self-Powered ultraviolet photodetector.  CHEMICAL ENGINEERING JOURNAL,      [PMID:] [10.1016/j.cej.2023.146762]
2. Xinshu Zou, Shuang Cai, Tingting Wang, Sidi Zheng, Xilong Cui, Jingyou Hao, Xueying Chen, Yanyan Liu, Zhiyun Zhang, Yanhua Li.  (2023)  Natural Antibacterial Agent-based Nanoparticles for Effective Treatment of Intracellular MRSA Infection.  Acta Biomaterialia,      [PMID:37557944] [10.1016/j.actbio.2023.08.004]
3. Wulan Zeng, Xia Wang, Xiangjun Kong, Youwang Li, Yunju Zhang.  (2023)  Study on crystal structure, spectroscopic, thermodynamic properties and Hirshfeld surfaces of a new spirocompound containing thiourea group C17H18N2O4S.  JOURNAL OF MOLECULAR STRUCTURE,      [PMID:] [10.1016/j.molstruc.2023.135017]
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5. Yizhou Tu, Huimin Wang, Pingping Yang, Guizhou Xu, Xuejiao Hu, Aimin Li, Xianchuan Xie.  (2021)  A porous thienyl cyclodextrin polymer synthesized in a homogeneous ionic liquid catalytic system for the rapid removal of pharmaceuticals and personal care products (PPCPs).  GREEN CHEMISTRY,  24  (1): (227-237).  [PMID:] [10.1039/D1GC03141D]
6. Yang Yang, Fuwei Yang, Xiaotian Shan, Jiamin Xu, Wenjie Fang, Juan Zhou, Lipeng Qiu, Jinghua Chen.  (2021)  Fabrication of pH/Reduction Sensitive Polyethylene Glycol-Based Micelles for Enhanced Intracellular Drug Release.  Pharmaceutics,  13  (9): (1464).  [PMID:34575539] [10.3390/pharmaceutics13091464]
7. Jialu Gao, Yong Xu, Yan Zheng, Xin Wang, Shuting Li, Guoqing Yan, Jun Wang, Rupei Tang.  (2019)  pH-sensitive carboxymethyl chitosan hydrogels via acid-labile ortho ester linkage as an implantable drug delivery system.  CARBOHYDRATE POLYMERS,      [PMID:31521291] [10.1016/j.carbpol.2019.115237]
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11. Jinxia An, Qianqian Guo, Peng Zhang, Andrew Sinclair, Yu Zhao, Xinge Zhang, Kan Wu, Fang Sun, Hsiang-Chieh Hung, Chaoxing Li, Shaoyi Jiang.  (2016)  Hierarchical design of a polymeric nanovehicle for efficient tumor regression and imaging.  Nanoscale,  (17): (9318-9327).  [PMID:27088429] [10.1039/C6NR01595F]
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14. Zhong-Qiong Qin, Ze-Tao Xiao, Xi-Yang Lan, Xin Wang, Yuan Hu, Lei Song.  (2025)  Cardanol-derived polybenzoxazine networks integrated with high glass transition temperatures, flame retardancy and toughness.  POLYMER DEGRADATION AND STABILITY,      [PMID:] [10.1016/j.polymdegradstab.2025.111232]
15. Chengxin Zhang, Lulu Yang, Lin Zhao, Yu Liu, Dongfeng Hong, Xiaoyuan Shi, Shaolei Wang, Guangshan Zhu.  (2024)  Economical and rapid mechanochemical synthesis of porous organic adsorbents with high hydrophilicity for ultra-fast removal of organic micro-pollutants from water.  SEPARATION AND PURIFICATION TECHNOLOGY,      [PMID:] [10.1016/j.seppur.2024.129236]
16. Pan Deng, Lin Chen, Zi-Jie Cao, Yue Li, Guan-Qi Zheng, Yu-Zhong Wang, Xiu-Li Wang.  (2025)  Bioinspired Dual-Stimulus-Responsive Macromolecular Engineering Enables Chemically Recyclable, High-Performance and Fire-Retardant Plastic.  MACROMOLECULES,      [PMID:] [10.1021/acs.macromol.5c00753]
17. Miaomiao Long, Shenhuan Liu, Xiaotian Shan, Jing Mao, Fuwei Yang, Xiaoyu Wu, Lipeng Qiu, Jinghua Chen.  (2020)  Self-assembly of pH-sensitive micelles for enhanced delivery of doxorubicin to melanoma cells.  JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY,      [PMID:] [10.1016/j.jddst.2020.101859]
18. Lingyu Chen, Yunhong Liu, Xinyan Peng, Yuelan Wei, Ke Shao.  (2025)  Simultaneous hypercrosslinking and functionalization of porous polystyrene adsorbent for protein-bound uraemic toxins removal.  REACTIVE & FUNCTIONAL POLYMERS,      [PMID:] [10.1016/j.reactfunctpolym.2025.106265]
19. Zhongqi Zhang, Yingjie Shen, Aosen Zhang, Yuan Zhai, Ziqing Wang, Kun Jiang, Heyun Wang.  (2025)  Preparation of imidazole ligand zirconium-based UiO-66 and its application in the direct synthesis of dimethyl carbonate from CO2 and methanol.  Journal of CO2 Utilization,      [PMID:] [10.1016/j.jcou.2025.103148]
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