Diethyl phosphite

Modify Date: 2025-08-22 07:49:33

Diethyl phosphite structure	Common Name	Diethyl phosphite
	CAS Number	762-04-9	Molecular Weight	138.10200
	Density	1.072 g/mL at 25 °C(lit.)	Boiling Point	50-51 °C2 mm Hg(lit.)
	Molecular Formula	C₄H₁₁O₃P	Melting Point	-70 °C
	MSDS	Chinese USA	Flash Point	180 °F
	Symbol	GHS07	Signal Word	Warning

Name	diethyl phosphonate
Synonym	More Synonyms

Density	1.072 g/mL at 25 °C(lit.)
Boiling Point	50-51 °C2 mm Hg(lit.)
Melting Point	-70 °C
Molecular Formula	C₄H₁₁O₃P
Molecular Weight	138.10200
Flash Point	180 °F
Exact Mass	138.04500
PSA	59.00000
LogP	1.44910
Index of Refraction	n20/D 1.407(lit.)
Stability	Stable. Incompatible with strong oxidizing agents, strong acids, acid chlorides, strong bases. May decompose on exposure to moisture. Combustible.
Water Solubility	miscible (hydrolysis)

Diethyl phosphite MSDS(Chinese)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: TG7875000

CHEMICAL NAME :: Phosphorous acid, diethyl ester

CAS REGISTRY NUMBER :: 762-04-9

BEILSTEIN REFERENCE NO. :: 0605759

LAST UPDATED :: 199710

DATA ITEMS CITED :: 7

MOLECULAR FORMULA :: C4-H11-O3-P

MOLECULAR WEIGHT :: 138.12

WISWESSER LINE NOTATION :: 2OPQO2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 3900 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: ALBRW* Albright & Wilson Inc. (P.O. Box 26229, Richmond, VA 23260-6229) Volume(issue)/page/year: #OPB-3,1984

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 2020 uL/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: AIHAAP American Industrial Hygiene Association Journal. (AIHA, 475 Wolf Ledges Pkwy., Akron, OH 44311) V.19- 1958- Volume(issue)/page/year: 30,470,1969 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 82805 No. of Facilities: 41 (estimated) No. of Industries: 1 No. of Occupations: 3 No. of Employees: 352 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 82805 No. of Facilities: 84 (estimated) No. of Industries: 1 No. of Occupations: 2 No. of Employees: 505 (estimated)

Symbol	GHS07
Signal Word	Warning
Hazard Statements	H315-H319-H335
Precautionary Statements	P280-P304 + P340 + P312-P305 + P351 + P338-P337 + P313
Personal Protective Equipment	Eyeshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes	Xi:Irritant
Risk Phrases	R36/37/38;R43
Safety Phrases	S26-S36/37/39-S37/39-S28-S27
RIDADR	NA 1993 / PGIII
WGK Germany	1
RTECS	TG7875000

Precursor 10
CAS#:122-52-1 Triethyl phosphite CAS#:64-17-5 Ethanol CAS#:814-49-3 Diethyl chlorop... CAS#:5324-30-1 Diethyl (2-brom...
CAS#:106938-62-9 (diethoxyphosph... CAS#:762-04-9 Diethyl phosphite CAS#:99-61-6 3-Nitrobenzaldehyde CAS#:123-11-5 4-Methoxybenzal...
CAS#:104-55-2 Cinnamaldehyde CAS#:123-38-6 Propionaldehyde
DownStream 10
CAS#:108228-81-5 1-(bromomethyl)... CAS#:1112-29-4 Tetraethyl(etho... CAS#:995-37-9 ethyl (E)-3-die... CAS#:108682-51-5 methyl 2-dietho...
CAS#:1084-08-8 [diethoxyphosph... CAS#:16165-66-5 hexylphosphonic... CAS#:111737-80-5 5-(diethoxyphos... CAS#:125910-88-5 diethyl (2,4-di...
CAS#:1090-99-9 diethoxyphospho... CAS#:1070-42-4 bis(2-chloroeth...

Silver-catalyzed radical phosphonofluorination of unactivated alkenes.

J. Am. Chem. Soc. 135(38) , 14082-5, (2013)

We report herein a mild and catalytic phosphonofluorination of unactivated alkenes. With catalysis by AgNO3, the condensation of various unactivated alkenes with diethyl phosphite and Selectfluor reag...

Efficient cross-coupling of functionalized arylzinc halides catalyzed by a nickel chloride-diethyl phosphite system.

Org. Lett. 7(22) , 4871-4, (2005)

[reaction: see text] The combination of diethyl phosphite and DMAP as ligands for nickel in an 8:1 THF-N-ethylpyrrolidinone (NEP) mixture allows a very efficient cross-coupling reaction to be performe...

A method for synthesis of homoallylic bromide.

J. Org. Chem. 78(12) , 5918-24, (2013)

Cyclopropyl Grignard reagents react with carbonyl compounds in the presence of diethyl phosphite to give homoallylic bromides. The reaction is effectively carried out under mild conditions in a one-po...

EINECS 212-091-6

MFCD00044573

Diethyl phosphite

diethoxy(oxo)phosphanium

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Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Diethyl phosphite
Price: Check
Purity: 99.0%
Delivery: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Henan Tianfu Chemical Co., Ltd.
China
Product Name: Diethyl phosphite
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Delivery: Inquiry
Contact: Anson
Email: info@tianfuchem.com

Zhongshan Xingrui Chemical Co. , Ltd.
China
Product Name: Diethyl phosphite
Price: ￥Inquiry/25kg
Purity: 99.0%
Delivery: Inquiry
Contact: Wang Jie
Email: 3096638339@qq.com

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Diethyl phosphite

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Chemical & Physical Properties

MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

Safety Information

Synthetic Route

Precursor & DownStream

Articles5

Synonyms

The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.