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ChemicalBook >> CAS DataBase List >>5'-O-DMT-2'-TBDMS-Uridine

5'-O-DMT-2'-TBDMS-Uridine

CAS No.
81246-80-2
Chemical Name:
5'-O-DMT-2'-TBDMS-Uridine
Synonyms
TBS-rU;DMT-2'-O-TBDMS-Ur;5'-DMT-2'-TBDMS-rU;2'-O-TBDMS-5'-O-DMT-U;5'-O-DMT-2'-O-TBDMS-rU;5'-O-DMTr-2'-O-TBDMS-rU;5'-DMTr-2'-TBDMS-uridine;5'-O-DMT-2'-TBDMS-Uridine;5'-O-DMT-2'-TBDMS-Uridine;5'-O-DMT-2'-O-TBDMS uridine
CBNumber:
CB92516265
Molecular Formula:
C36H44N2O8Si
Molecular Weight:
660.83
MDL Number:
MFCD00135726
MOL File:
81246-80-2.mol
MSDS File:
SDS
Last updated:2026-07-16 07:06:08
Product description Number Pack Size Price
2'-O-tert-Butyldimethylsilyl-5'-O-DMT-uridine Asreported 295510 1g $389
2'-O-tert-Butyldimethylsilyl-5'-O-DMT-uridine Asreported 295510 2g $542
2'-O-tert-Butyldimethylsilyl-5'-O-DMT-uridine Asreported 295510 5g $798
2'-O-tert-Butyldimethylsilyl-5'-O-DMT-uridine Asreported 295510 10g $1130
2'-O-tert-Butyldimethylsilyl-5'-O-DMT-uridine Asreported 295510 25g $1609

5'-O-DMT-2'-TBDMS-Uridine Properties

Density 1.24±0.1 g/cm3(Predicted)
storage temp. under inert gas (nitrogen or Argon) at 2-8°C
solubility DMSO : 100 mg/mL (151.32 mM; Need ultrasonic)
pka 9.39±0.10(Predicted)
form Solid
color White to light yellow
InChIKey KVHQIELPHWJPSY-WLVJKCSANA-N
SMILES O(C(C1=CC=C(OC)C=C1)(C1=CC=C(OC)C=C1)C1=CC=CC=C1)C[C@H]1O[C@@H](N2C=CC(=O)NC2=O)[C@H](O[Si](C(C)(C)C)(C)C)[C@@H]1O |&1:25,27,36,45,r|

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319
Precautionary statements  P264-P280-P302+P352-P337+P313-P305+P351+P338-P362+P364-P332+P313

5'-O-DMT-2'-TBDMS-Uridine price More Price(34)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Usbiological 295510 2'-O-tert-Butyldimethylsilyl-5'-O-DMT-uridine Asreported 81246-80-2 1g $389 2026-06-03 Buy
Usbiological 295510 2'-O-tert-Butyldimethylsilyl-5'-O-DMT-uridine Asreported 81246-80-2 2g $542 2026-06-03 Buy
Usbiological 295510 2'-O-tert-Butyldimethylsilyl-5'-O-DMT-uridine Asreported 81246-80-2 5g $798 2026-06-03 Buy
Usbiological 295510 2'-O-tert-Butyldimethylsilyl-5'-O-DMT-uridine Asreported 81246-80-2 10g $1130 2026-06-03 Buy
Usbiological 295510 2'-O-tert-Butyldimethylsilyl-5'-O-DMT-uridine Asreported 81246-80-2 25g $1609 2026-06-03 Buy
Product number Packaging Price Buy
295510 1g $389 Buy
295510 2g $542 Buy
295510 5g $798 Buy
295510 10g $1130 Buy
295510 25g $1609 Buy

5'-O-DMT-2'-TBDMS-Uridine Chemical Properties,Uses,Production

Uses

5''-O-DMT-2''-TBDMS-Uridine (cas# 81246-80-2) is a nucleoside and has been used in the prepartion of pseudorotaxane architectures. It has also been able to undergo microwave-assisted phosphitylation in the preparation of nucleoside phosphoramidites.

Synthesis

tert-Butyldimethylsilyl chloride

18162-48-6

5'-O-(4,4'-Dimethoxytrityl)uridine

81246-79-9

5'-O-DMT-2'-TBDMS-Uridine

81246-80-2

5'-O-(4,4'-Dimethoxytrityl)uridine (27.88 g, 51.0 mmol) was dissolved in anhydrous tetrahydrofuran (340 mL). Anhydrous pyridine (16.2 mL, 0.20 mol) and silver nitrate (9.53 g, 56.1 mmol) were added sequentially under stirring and stirring was continued for 15 min. After silver nitrate was almost completely dissolved, tert-butyldimethylchlorosilane (TBDMS-Cl) (8.46 g, 56.1 mmol) was added quickly. The resulting turbid emulsion was stirred at room temperature for 12 hours. Upon completion of the reaction, the mixture was filtered into 5% sodium bicarbonate solution to prevent the shedding of 4,4'-dimethoxytrityl (DMTr) protecting group. Subsequently, the mixture was concentrated to about 200 mL on a rotary evaporator to remove some of the solvent. After dilution with ethyl acetate, the mixture was sequentially extracted three times with saturated sodium bicarbonate solution. The organic layer was dried over anhydrous magnesium sulfate and concentrated to dryness. Finally, the target product 5'-O-DMTr-2'-O-TBDMS-uridine (21.92 g, 65% yield) was purified by column chromatography (eluent: tert-butyl methyl ether/hexane, 0.50%). The product was structurally confirmed by 1H NMR (400 MHz, DMSO-d6) and mass spectrometry (calculated value: 546.20; measured value: 569.32 [M+Na]+).

References

[1] Organic Letters, 2013, vol. 15, # 18, p. 4710 - 4713
[2] Nature Chemistry, 2013, vol. 5, # 9, p. 790 - 795
[3] Tetrahedron Letters, 2011, vol. 52, # 20, p. 2575 - 2578

18162-48-6
81246-79-9
81246-80-2
Synthesis of 5'-O-DMT-2'-TBDMS-Uridine from tert-Butyldimethylsilyl chloride and 5'-O-(4,4'-Dimethoxytrityl)uridine

5'-O-DMT-2'-TBDMS-Uridine Preparation Products And Raw materials

5'-O-DMT-2'-TBDMS-Uridine Suppliers

Global( 113)Suppliers
Supplier Tel Email Country ProdList Advantage
Allbiosyn Biotechnology Co.,Ltd.
+86-18666985712 info@allbiosyn.com China 295 58
Jinan Carbotang Biotech Co.,Ltd. 		+8615866703830 figo.gao@foxmail.com China 8491 58
BOC Sciences 		+1-631-485-4226 inquiry@bocsci.com United States 19935 58
Alchem Pharmtech,Inc. 		8485655694 sales@alchempharmtech.com United States 63645 58
Antai Fine Chemical Technology Co.,Limited 		18503026267 info@antaichem.com CHINA 9631 58
SHANGHAI T&W PHARMACEUTICAL CO., LTD. 		+86-021-61551413 contact@trustwe.com China 5742 58
Career Henan Chemica Co 		+86-0371-86658258 +86-13203830695 laboratory@coreychem.com China 30203 58
Finetech Industry Limited 		+86-27-8746-5837 +86-18627785180 info@finetechnology-ind.com China 9539 58
NewCan Biotech Limited 		+86-571-86912261 19975279805 sales@newcanbio.com China 9984 58
Hefei TNJ Chemical Industry Co.,Ltd. 		+86-0551-65418684 +86-18949823763 sales@tnjchem.com China 25333 58

View Lastest Price from 5'-O-DMT-2'-TBDMS-Uridine manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
5'-DMT-2'-TBDMS-RU pictures 2026-08-03 5'-DMT-2'-TBDMS-RU
81246-80-2
 1G 98% 2000 Shenzhen Nexcon Pharmatechs Ltd.
5'-O-DMT-2'-TBDMS-Uridine pictures 2026-07-15 5'-O-DMT-2'-TBDMS-Uridine
81246-80-2
 $42.00 10g TargetMol Chemicals Inc.
5'-O-DMT-2'-TBDMS-Uridine pictures 2025-04-04 5'-O-DMT-2'-TBDMS-Uridine
81246-80-2
 1kg 98% 1Ton Henan Aochuang Chemical Co.,Ltd.
5'-DMTr-2'-TBDMS-uridine 2'-O-tertButyldimethylsilyl-5'-O-DMT-uridine 5'-DMT-2'-TBDMS-rU 1-((2R,3R,4R,5R)-5-((Bis(4-Methoxyphenyl)(phenyl)Methoxy)Methyl)-3-((tert-butyldiMethylsilyl)oxy)-4-hydroxytetrahydrofuran-2-yl)pyriMidine-2,4(1H,3H)-dione 5'-O-(4,4'-DiMethoxytrityl)-2'-O-t-butyldiMethylsilyl uridine 2'-O-tert-ButyldiMethylsilyl-5'-O-(4,4'-diMethoxytrityl)uridine 1-((2R,3R,4R,5R)-5-((Bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-3-((tert-butyld methylsilyl)oxy) 1-((2R,3R,4R,5R)-5-((Bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-3-((tert-butyldimethylsilyl)o 5'-O-DMT-2'-O-TBDMS uridine DMT-2'-O-TBDMS-Ur Uridine, 5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-O-[(1,1-dimethylethyl)dimethylsilyl]- 5'-O-DMT-2'-O-TBDMS-rU 1-((2R,3R,4R,5R)-5-((Bis(4-methoxyphenyl)(phenyl)methoxy)met... 2'-O-TBDMS-5'-O-DMT-uridine 1-((2S,3S,4S,5S)-5-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-3-((tert-butyldimethylsilyl)oxy)-4-hydroxytetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione 5'-O-dimethoxytrityl-2'-O-tert-butyldimethylsilyl uridine 1-[(2R,3R,4R,5R)-5-[[Bis(4-methoxyphenyl)(phenyl)methoxy]methyl]-3-[(tert-butyldimethylsilyl)oxy]-4-hydroxy-2-tetrahydrofuryl]pyrimidine-2,4(1H,3H)-dione 5'-O-DMTr-2'-O-TBDMS-rU 5'-O-DMT-2'-TBDMS-Uridine TBS-rU 5'-O-DMT-2'-O-TBDMS-uridine 2'-O-TBDMS-5'-O-DMT-U 5 ' - 0 - DMT- 2 ' -TBDMS- uridine 5'-O-DMT-2'-TBDMS-Uridine 5'-o-(4,4'-dimethoxytriphenylmethyl)-2'-o-tert-butyldimethylsilyluridine 5'-o-(4,4'-dimethoxytribenzyl)-2'-o-tert-butyldimethylsiliconylglycoside 81246-80-2 pyrimidine Heterocycle-Pyrimidine series
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