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ChemicalBook >> CAS DataBase List >>2,2,3,3-Tetramethyl-4,7,10,13,16-pentaoxa-3-silanonadec-18-yne

2,2,3,3-Tetramethyl-4,7,10,13,16-pentaoxa-3-silanonadec-18-yne

CAS No.
203642-77-7
Chemical Name:
2,2,3,3-Tetramethyl-4,7,10,13,16-pentaoxa-3-silanonadec-18-yne
Synonyms
Alkyne-PEG4-TBS;TBS-PEG4-O-alkyne;2,2,3,3-Tetramethyl-4,7,10,13,16-pentaoxa-3-silanonadec-18-yne;2,2,3,3-Tetramethyl-4,7,10,13,16-pentaoxa-3-sila-18-ynonadecane;4,7,10,13,16-Pentaoxa-3-silanonadec-18-yne, 2,2,3,3-tetramethyl-;2,2,3,3-Tetramethyl-4,7,10,13,16-pentaoxa-3-silanonadec-18-yne 97%;tert-butyl-dimethyl-[2-[2-[2-(2-prop-2-ynoxyethoxy)ethoxy]ethoxy]ethoxy]silane
CBNumber:
CB02755801
Molecular Formula:
C17H34O5Si
Molecular Weight:
346.53
MDL Number:
MFCD24849723
MOL File:
203642-77-7.mol
MSDS File:
SDS
Last updated:2026-05-27 17:36:37
Product description Number Pack Size Price
2,2,3,3-Tetramethyl-4,7,10,13,16-pentaoxa-3-silanonadec-18-yne 97% 775606 500mg $96.8
2,2,3,3-Tetramethyl-4,7,10,13,16-pentaoxa-3-silanonadec-18-yne 98% AA00I3RE 100mg $16
2,2,3,3-Tetramethyl-4,7,10,13,16-pentaoxa-3-silanonadec-18-yne 98% AA00I3RE 250mg $19
2,2,3,3-Tetramethyl-4,7,10,13,16-pentaoxa-3-silanonadec-18-yne 98% AA00I3RE 1g $28
2,2,3,3-Tetramethyl-4,7,10,13,16-pentaoxa-3-silanonadec-18-yne 95.00% Y225525 1G $135

2,2,3,3-Tetramethyl-4,7,10,13,16-pentaoxa-3-silanonadec-18-yne Properties

Boiling point 370.9±32.0 °C(Predicted)
Density 0.980 g/mL at 25 °C
refractive index n20/D1.451
Flash point >110℃
form liquid
UNSPSC Code 12352200
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Skull and Crossbones (GHS06)
GHS06
Signal word  Danger
Hazard statements  H301-H315
Precautionary statements  P301+P310+P330-P302+P352
Hazard Codes  T
Risk Statements  25-38
Safety Statements  45
RIDADR  UN 2810 6.1 / PGIII
WGK Germany  3

2,2,3,3-Tetramethyl-4,7,10,13,16-pentaoxa-3-silanonadec-18-yne price More Price(15)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 775606 2,2,3,3-Tetramethyl-4,7,10,13,16-pentaoxa-3-silanonadec-18-yne 97% 203642-77-7 500mg $96.8 2023-01-07 Buy
aablocks AA00I3RE 2,2,3,3-Tetramethyl-4,7,10,13,16-pentaoxa-3-silanonadec-18-yne 98% 203642-77-7 100mg $16 2026-05-29 Buy
aablocks AA00I3RE 2,2,3,3-Tetramethyl-4,7,10,13,16-pentaoxa-3-silanonadec-18-yne 98% 203642-77-7 250mg $19 2026-05-29 Buy
aablocks AA00I3RE 2,2,3,3-Tetramethyl-4,7,10,13,16-pentaoxa-3-silanonadec-18-yne 98% 203642-77-7 1g $28 2026-05-29 Buy
ACHEMBLOCK Y225525 2,2,3,3-Tetramethyl-4,7,10,13,16-pentaoxa-3-silanonadec-18-yne 95.00% 203642-77-7 1G $135 2026-05-27 Buy
Product number Packaging Price Buy
775606 500mg $96.8 Buy
AA00I3RE 100mg $16 Buy
AA00I3RE 250mg $19 Buy
AA00I3RE 1g $28 Buy
Y225525 1G $135 Buy

2,2,3,3-Tetramethyl-4,7,10,13,16-pentaoxa-3-silanonadec-18-yne Chemical Properties,Uses,Production

Uses

Protected PEG-alkyne for Cu catalyzed azide-alkyne cycloadditions or palladium catalyzed coupling reactions.

reaction suitability

reaction type: click chemistry

2,2,3,3-Tetramethyl-4,7,10,13,16-pentaoxa-3-silanonadec-18-yne Preparation Products And Raw materials

Raw materials

Preparation Products

2,2,3,3-Tetramethyl-4,7,10,13,16-pentaoxa-3-silanonadec-18-yne Suppliers

Global( 22)Suppliers
Supplier Tel Email Country ProdList Advantage
Aladdin Scientific
tp@aladdinsci.com United States 52923 58
Compound Net Biotechnology Inc.
15266686121 sales@compound-net.com China 2914 58
Nanjing Moldeep Biochemical Co., Ltd.
+86-25-58282389 +86-17351037455 inquiries@moldeep.com China 20000 58
Sigma-Aldrich 021-61415566 800-8193336 orderCN@merckgroup.com China 51395 80
Borenpharm Co., Ltd 027-65563561 sales@borenpharm.com China 1245 55
SHANGHAI FDC-CHEMICAL CO.,LTD 021-61469567 13774476675 sales@fdc-chemical.com China 10000 58
Changsha Bono New Materials Technology Co., Ltd. 18191076804 asherw9@hotmail.com China 2373 58
Shanghai Minhan Pharmaceutical Technology Co., Ltd. 17612188245 2816925681@qq.com China 9999 58
Shanghai Haohong Pharmaceutical Co., Ltd. 400-8210725 4008210725 malulu@leyan.com China 54996 58
Henan Weitesi Chemical Technology Co. LTD 0371-55135753 18003832934 3842570495@qq.com China 9997 58
2,2,3,3-Tetramethyl-4,7,10,13,16-pentaoxa-3-silanonadec-18-yne 4,7,10,13,16-Pentaoxa-3-silanonadec-18-yne, 2,2,3,3-tetramethyl- 2,2,3,3-Tetramethyl-4,7,10,13,16-pentaoxa-3-silanonadec-18-yne 97% tert-butyl-dimethyl-[2-[2-[2-(2-prop-2-ynoxyethoxy)ethoxy]ethoxy]ethoxy]silane 2,2,3,3-Tetramethyl-4,7,10,13,16-pentaoxa-3-sila-18-ynonadecane TBS-PEG4-O-alkyne Alkyne-PEG4-TBS 203642-77-7
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