ChemicalBook >> CAS DataBase List >>TSTU
TSTU
- CAS No.
- 105832-38-0
- Chemical Name:
- TSTU
- Synonyms
- 2-(2,5-Dioxopyrrolidin-1-yl)-1,1,3,3-tetraMethylisouroniuM tetrafluoroborate;O-(N-succinimidyl)-N,N,N',N'-tetramethyl uronium bf4;2-SUCCINIMIDO-1,1,3,3-TETRAMETHYLURONIUM TETRAFLUOROBORATE;O-(N-SUCCINIMIDYL)-1,1,3,3-TETRAMETHYLURONIUM TETRAFLUOROBORATE;O-(N-SucciniMidyl)-1,1,3,3-tetraMethyl uraniuM tetrafluoroborate;TSTU, N-{(Dimethylamino)[(2,5-dioxopyrrolidin-1-yl)oxy]methylidene}-N-methylmethylaminium tetrafluoroborate;TSTU;HONSTU;TSTU 25 G;TSTU USP/EP/BP
- CBNumber:
- CB5415670
- Molecular Formula:
- C9H16BF4N3O3
- Molecular Weight:
- 301.05
- MDL Number:
- MFCD00077875
- MOL File:
- 105832-38-0.mol
- MSDS File:
- SDS
- TDS File:
- TDS
Last updated:2026-05-28 03:50:14
| Melting point | 198-201 °C(lit.) |
|---|---|
| Density | 1.41 g/cm |
| storage temp. | 2-8°C |
| solubility | acetonitrile: 0.1 g/mL, clear |
| form | Crystalline Powder or Needles |
| color | White to off-white |
| Sensitive | Moisture Sensitive |
| Major Application | peptide synthesis |
| InChI | InChI=1S/C9H16N3O3.BF4/c1-10(2)9(11(3)4)15-12-7(13)5-6-8(12)14;2-1(3,4)5/h5-6H2,1-4H3;/q+1;-1 |
| InChIKey | BVYYWTQJMFGHLU-UHFFFAOYSA-M |
| SMILES | [B+3]([F-])([F-])([F-])[F-].O(N1C(CCC1=O)=O)/C(=[N+](\C)/C)/N(C)C |
| CAS DataBase Reference | 105832-38-0(CAS DataBase Reference) |
| UNSPSC Code | 12352107 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319 | |||||||||
| Precautionary statements | P302+P352-P305+P351+P338 | |||||||||
| PPE | dust mask type N95 (US), Eyeshields, Gloves | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 26-36-37/39 | |||||||||
| RIDADR | 1759 | |||||||||
| WGK Germany | 3 | |||||||||
| F | 8-10-21 | |||||||||
| HazardClass | 8 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 29280000 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Skin Sens. 1A | |||||||||
| NFPA 704 |
|
TSTU price More Price(84)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 385530 | N,N,N′,N′-Tetramethyl-O-(N-succinimidyl)uronium tetrafluoroborate 97% | 105832-38-0 | 1g | $86 | 2026-04-30 | Buy |
| Sigma-Aldrich | 8.51206 | TSTU Novabiochem? | 105832-38-0 | 25g | $165 | 2026-04-30 | Buy |
| Sigma-Aldrich | 385530 | N,N,N′,N′-Tetramethyl-O-(N-succinimidyl)uronium tetrafluoroborate 97% | 105832-38-0 | 5g | $198 | 2026-04-30 | Buy |
| TCI Chemical | T2224 | N,N,N',N'-Tetramethyl-O-(N-succinimidyl)uronium Tetrafluoroborate >98.0%(HPLC)(N) | 105832-38-0 | 1g | $30 | 2026-04-30 | Buy |
| TCI Chemical | T2224 | N,N,N',N'-Tetramethyl-O-(N-succinimidyl)uronium Tetrafluoroborate >98.0%(HPLC)(N) | 105832-38-0 | 5g | $79 | 2026-04-30 | Buy |
TSTU Chemical Properties, Uses, Production
Chemical Properties
White crystalline
Uses
peptide coupling reagent converts carboxylates to N-succinimidyl active esters
Uses
Reagent for the clean in-situ formation of N-succinimidyl active esters
Uses
TSTU is used as a peptide coupling reagent in solvent systems.
General Description
N,N,N′,N′-Tetramethyl-O-(N-succinimidyl)uronium tetrafluoroborate is commonly used for the conversion of carboxylic acid into the corresponding N-hydroxysuccinimidyl (NHS) ester.
reaction suitability
reaction type: Coupling Reactions
TSTU Preparation Products And Raw materials
Raw materials
Preparation Products
Global Suppliers ( 355)
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Suzhou Highfine Biotech Co., Ltd | 0512-69209928 18796809688 | zhouyingxiang@highfine.com | China | 473 | 75 |
| Binhai gill polypeptide co. LTD | 021-61263389 13524856427 | Joetang@glschina.com | China | 9927 | 58 |
| Huai'an Enrico Biotech Co., Ltd | 0517-83900106 19962248636 | 752281871@qq.com | China | 46 | 58 |
| Xinghua Advanced Materials (Suzhou) Co., Ltd. | 13816002113 | 68249111@qq.com | China | 34 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| ShangHai DEMO Chemical Co.,Ltd | 400-021-7337 2355568890 | sales@demochem.com | China | 2569 | 57 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
View Latest Price from TSTU manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-09-16 | TSTU
105832-38-0
|
1kg | 99.9% | 20T | WUHAN FORTUNA CHEMICAL CO., LTD | ||
 |
2026-07-22 | TSTU 2-Succinimido-1,1,3,3-tetra-methyluronium tetrafluoroborate
105832-38-0
|
1kg | 99% | 20MT | Watson Biotechnology Co.,Ltd | ||
 |
2025-06-20 | TSTU
105832-38-0
|
1KG | 98% | 100MT/Month | Hebei Yanxi Chemical Co., Ltd. |
-
- TSTU
105832-38-0
- 99.9%
- WUHAN FORTUNA CHEMICAL CO., LTD
-
- TSTU 2-Succinimido-1,1,3,3-tetra-methyluronium tetrafluoroborate
105832-38-0
- 99%
- Watson Biotechnology Co.,Ltd
-
- TSTU
105832-38-0
- 98%
- Hebei Yanxi Chemical Co., Ltd.
HONSTU
O-(N-SUCCINIMIDYL)-1,1,3,3-TETRAMETHYLURONIUM TETRAFLUOROBORATE
O-(N-SucciniMidyl)-1,1,3,3-tetraMethyl uraniuM tetrafluoroborate
TSTU, N-{(Dimethylamino)[(2,5-dioxopyrrolidin-1-yl)oxy]methylidene}-N-methylmethylaminium tetrafluoroborate
2-Succinimido-1,1,3,3-tetra-methyluronium etrafluoroborate
O-(N-Succinimidyl)-N,N,N',N'-tetramethyluronium tetrafluoroborate
N,N,N′,N′-Tetramethyl-O-(N-succinimidyl)uronium tetrafluoroborate,O-(N-Succinimidyl)-N,N,N′,N′-tetramethyluronium tetrafluoroborate, TSTU
2-Succinimido-1,1,3
N,N,N′,N′-Tetramethyl-O-(N-succinimidyl)uroniu
N,N,N′,N′-TetraMethyl-O-(N-succiniMidyl)uroniuM tetrafluoroborate (TSTU)
N,N,N',N'-TetraMethyl-O-(N-succiniMidyl)uroniuM tetrafluoroborate 97%
2-SucciniMido-1,1,3,3-tetra-MethyluroniuM tetrafluoroborate (TSTU)
N,N,N',N'-Tetramethyl-O-(N-succinimidyl)uronium tetrafluoroborate
2-Succinimido-1,1,3,3-tetramethyluronium tetrafluoroborate≥ 99% (HPLC)
O-(N-Succinimidyl)-N,N,N',N'-tetramethyluronium Tetrafluorob
2Succinio1133tetramethyluronium tetrafluobate
N,N,N',N'-TETRAMETHYL-O-(N-SUCCINIMIDYL)URONIUM TETRAFLUOROBORATE
N,N,N',N'-TETRAMETHYL-O-(SUCCINIMIDYL)URONIUM TETRAFLUOROBORATE
TSTU
TSTU, O-(N-Succinimidyl)-1,1,3,3-tetramethyluronium tetrafluoroborate
TSTU [O-(N-SUCCINIMIDYL)-N,N,N',N'-TETRAMETHYL URONIUM BF4]
N,N,N'N'-Tetramethyl-O-(N-succinimidyl)uroniumTet
O-(N-Succinimidyl)-1,1,3,3-tetramethyluroniumtetr
2-Succinimide-1,1,3,3-tetramethyluronium tetrafluoroborate
TSTU 2-SUCCINIMIDO-1,1,3,3-TETRA-METHYLURONIUM TETRAFLUOROBORATE
TSTU O-(N-Succinimidyl)-1,1,3,3-tetramethyl uranium tetrafluoroborate
O-(N-SUCCINIMIDYL)-1,1,3,3-TETRAMETHYLURONIUM TETRAFLUOROBORATE TSTU
O-(N-SUCCINIMIDYL)-N,N,N'',N''-TETRAMETHYLURONIUM TETRAFLUOROBORATE (TSTU)
O-(N-succinimidyl)-tetramethyluronium tetrafluoroborate
TSTU, O-(N-Succinimidyl)-N,N,Nμ,Nμ-tetramethyluronium tetrafluoroborate
O-(N-Succinimidyl)-N,N,N',N'-tetramethyluronium tetrafluoroborat
2-succinimide-1,1,3,3-tetramethylurea tetrafluoroborate
TSTU 25 G
TSTU USP/EP/BP
O-(N-Succinimido)-N,N,N',N'-tetramethyluronium tetrafluoroborate(TSTU)
[Dimethylamino-(2,5-dioxopyrrolidin-1-yl)oxy-methylene]-dimethyl-ammonium tetrafluoroborate
TIANFUCHEM---TSTU
[dimethylamino-(2,5-dioxopyrrolidin-1-yl)oxymethylidene]-dimethylazanium
TSTU 2-SucciniMido-1,1,3,3-tetra-MethyluroniuM tetrafluoro
O-(N-Succinimidyl)-N,N,N',N'-tetramethyluronium Tetrafluoroborate
Methanaminium, N-[(dimethylamino)[(2,5-dioxo-1-pyrrolidinyl)oxy]methylene]-N-methyl-, tetrafluoroborate(1-) (1:1)
N,N,N',N'-Tetramethyl-O-(N-succinimidyl)uronium tetrafluoroborate (TSTU)
2-SUCCINIMIDO-1,1,3,3-TETRAMETHYLURONIUM
N,N,N’,N’-Tetramethyl-O-(N-succinimidyl)uronium Tetrafluoroborate
N,N,N′,N′-Tetramethyl-O-(N-succinimidyl)uronium tetrafluoroborate
N,N,N′,N′-Tetramethyl-O-(N-succinimidyl)uronium tetrafluoroborate, CAS 105832-38-0
O - (N-succinimide) - N N N '' N '' - tetramethyltetrafluoroborate urea
Tofacitinib Impurity 150
O-(N-Succinimidyl)-N,N,N',N'-tetramethyluronium tetrafluoroborate
2-(2,5-Dioxopyrrolidin-1-yl)-1,1,3,3-tetraMethylisouroniuM tetrafluoroborate
2-SUCCINIMIDO-1,1,3,3-TETRAMETHYLURONIUM TETRAFLUOROBORATE
O-(N-succinimidyl)-N,N,N',N'-tetramethyl uronium bf4
105832-38-0
05832-38-0
C9H16BF4N3O3
C9H16O3N3BF4
C9H16N3O3BF4
BF4C9H16N3O3
Coupling Reactions (Peptide Synthesis)
