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1809-21-8

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1809-21-8 Usage

General Description

Dipropyl phosphite is a chemical compound with the molecular formula C6H15O3P. It is a clear, colorless liquid with a slightly fruity odor. It is primarily used as a flame retardant in various materials, such as plastics and synthetic fibers, to improve their fire resistance. It serves as a processing aid in the production of polyurethane and as a stabilizer in the production of PVC. Dipropyl phosphite is also used as a chemical intermediate in the synthesis of other organophosphorus compounds. It is important to handle dipropyl phosphite with care, as it can be irritating to the skin and eyes, and harmful if ingested or inhaled.

Check Digit Verification of cas no

The CAS Registry Mumber 1809-21-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,8,0 and 9 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1809-21:
(6*1)+(5*8)+(4*0)+(3*9)+(2*2)+(1*1)=78
78 % 10 = 8
So 1809-21-8 is a valid CAS Registry Number.
InChI:InChI=1/C6H15O3P/c1-3-5-8-10(7)9-6-4-2/h10H,3-6H2,1-2H3

1809-21-8SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 14, 2017

Revision Date: Aug 14, 2017

1.Identification

1.1 GHS Product identifier

Product name DIPROPYL PHOSPHITE

1.2 Other means of identification

Product number -
Other names di-n-Propylphosphite

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:1809-21-8 SDS

1809-21-8Relevant articles and documents

Fluorinated phosphorus compounds: Part 11. The reactions of some fluorinated amines with dialkyl and bis(fluoroalkyl) phosphorochloridates

Timperley, Christopher M.,Waters, Matthew

, p. 1144 - 1149 (2005)

Dimethyl phosphorochloridate reacted with RFCH 2NH2 in ether in the presence of Et3N to afford (MeO)2P(O)NHCH2RF, where RF = CF3 and C2F5, in 39 and 47% yield, respectively. Similar reactions with di-n-propyl and diisopropyl phosphorochloridates could be effected only with H2NCH 2CF3 when 4-dimethylaminopyridine catalyst was added and (n-PrO)2P(O)NHCH2CF3 and (i-PrO) 2P(O)NHCH2CF3 were isolated in 49 and 25% yield, respectively. Treatment of POCl3 with one molar equivalent each of H2NCH2CF3 and Et3N permitted the synthesis of Cl2P(O)NHCH2CF3 in 43% yield. Bis(fluoroalkyl) phosphorochloridates (RFO)2P(O)Cl, where RF = C2F5CH2, C3F 7CH2 and (CF3)2CH, reacted with 2,2,2-trifluoroethylamine and 2,2,3,3,3-pentafluoropropylamine to furnish phosphoramidates (RFO)2P(O)NHCH2R, where R = CF3 or C2F5, in yields of 32-67%.

Synthesis and in vitro cytotoxicity and antibacterial activity of novel1,2,3-triazol-5-yl-phosphonates

Bálint, Erika,Hackler, László,Kari, Beáta,Puskás, László G.,Szabó, Pál Tamás,Tóth, Emese,Tripolszky, Anna

, (2020/07/02)

Novel1,2,3-triazol-5-yl-phosphonates were prepared by the copper(I)-catalyzed domino reaction of phenylacetylene, organic azides and dialkyl phosphites. The process was optimized on the synthesis of the dibutyl (1-benzyl-4-phenyl-1H-1,2,3-triazol-5-yl)phosphonate in respect of the catalyst, the base and the solvent, as well as of the reaction parameters (molar ratio of the starting materials, atmosphere, temperature and reaction time). The method elaborated could be applied to a range of organic azides and dialkyl phosphites, which confirmed the large scope and the functional group tolerance. The in vitro cytotoxicity on different cell lines and the antibacterial activity of the synthesized1,2,3-triazol-5-yl-phosphonates was explored. According to the IC50 values determined, only modest antibacterial effect was detected, while some derivatives showed moderate activity against human promyelocytic leukemia HL-60 cells.

Electrophilic trifluoromethylation of S-hydrogen phosphorothioates

Santschi, Nico,Togni, Antonio

experimental part, p. 4189 - 4193 (2011/07/31)

A series of S-hydrogen phosphorothioates have been converted to the corresponding S-trifluoromethyl derivatives upon reaction with the electrophilic trifluoromethylation reagent 1 (trifluoromethyl 1,3-dihydro-3,3-dimethyl-1,2- benziodoxole). Relative rate data were obtained by 19F NMR monitoring of competition experiments and were evaluated by means of the Taft equation. A high positive polar sensitivity factor of 2.55 was found for electron-rich substrates and a negative one of -0.37 for electron-poor ones, implying the involvement of two different rate-determining steps. Furthermore, the reaction was found to be unaffected by steric factors.

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