sodium dihydrogenphosphate

Modify Date: 2025-08-20 18:02:59

sodium dihydrogenphosphate structure	Common Name	sodium dihydrogenphosphate
	CAS Number	7558-80-7	Molecular Weight	119.98
	Density	1.40 g/mL at 20 °C	Boiling Point	100°C
	Molecular Formula	H₂NaO₄P	Melting Point	<0ºC
	MSDS	Chinese USA	Flash Point	N/A

Use of sodium dihydrogenphosphate

Dihydrogen monosodium phosphate (NaH2PO4, NDHP) is a chemical compound of sodium with a phosphate counter ion. Sorbitan monooleate, in combination with other sodium phosphates, can serve a pH buffer. Dihydrogen monosodium phosphate can be used as an excipient, such as buffer, chelating agent. Pharmaceutical excipients, or pharmaceutical auxiliaries, refer to other chemical substances used in the pharmaceutical process other than pharmaceutical ingredients. Pharmaceutical excipients generally refer to inactive ingredients in pharmaceutical preparations, which can improve the stability, solubility and processability of pharmaceutical preparations. Pharmaceutical excipients also affect the absorption, distribution, metabolism, and elimination (ADME) processes of co-administered drugs[1][2].

Name	sodium dihydrogenphosphate
Synonym	More Synonyms

Description	Dihydrogen monosodium phosphate (NaH2PO4, NDHP) is a chemical compound of sodium with a phosphate counter ion. Sorbitan monooleate, in combination with other sodium phosphates, can serve a pH buffer. Dihydrogen monosodium phosphate can be used as an excipient, such as buffer, chelating agent. Pharmaceutical excipients, or pharmaceutical auxiliaries, refer to other chemical substances used in the pharmaceutical process other than pharmaceutical ingredients. Pharmaceutical excipients generally refer to inactive ingredients in pharmaceutical preparations, which can improve the stability, solubility and processability of pharmaceutical preparations. Pharmaceutical excipients also affect the absorption, distribution, metabolism, and elimination (ADME) processes of co-administered drugs[1][2].
Related Catalog	Research Areas >> Others Signaling Pathways >> Others >> Others
References	[1]. Kumar H, et al. Investigations on solute–solvent interactions of amino acids in aqueous solutions of sodium dihydrogen phosphate at different temperatures[J]. Monatshefte für Chemie-Chemical Monthly, 2014, 145: 1063-1082. [2]. Elder DP, et al. Pharmaceutical excipients - quality, regulatory and biopharmaceutical considerations. Eur J Pharm Sci. 2016 May 25;87:88-99.

Description

Related Catalog

Research Areas >> Others

Signaling Pathways >> Others >> Others

References

[1]. Kumar H, et al. Investigations on solute–solvent interactions of amino acids in aqueous solutions of sodium dihydrogen phosphate at different temperatures[J]. Monatshefte für Chemie-Chemical Monthly, 2014, 145: 1063-1082.

[2]. Elder DP, et al. Pharmaceutical excipients - quality, regulatory and biopharmaceutical considerations. Eur J Pharm Sci. 2016 May 25;87:88-99.

Density	1.40 g/mL at 20 °C
Boiling Point	100°C
Melting Point	<0ºC
Molecular Formula	H₂NaO₄P
Molecular Weight	119.98
Exact Mass	119.958839
PSA	90.40000
Storage condition	Store at RT.
Stability	Stable. Incompatible with heavy metals, strong acids.
Water Solubility	H2O: 5 M, clear, colorless

sodium dihydrogenphosphate MSDS(Chinese)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: WA1900000

CAS REGISTRY NUMBER :: 7558-80-7

LAST UPDATED :: 199701

DATA ITEMS CITED :: 8

MOLECULAR FORMULA :: H2-O4-P.Na

MOLECULAR WEIGHT :: 119.98

WISWESSER LINE NOTATION :: NA P-O2-Q2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration into the eye

SPECIES OBSERVED :: Human

REFERENCE :: ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag, Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951- Volume(issue)/page/year: 9,349,1959

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration into the eye

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag, Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951- Volume(issue)/page/year: 9,349,1959 ** ACUTE TOXICITY DATA **

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 8290 mg/kg

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

REFERENCE :: 28ZPAK "Sbornik Vysledku Toxixologickeho Vysetreni Latek A Pripravku," Marhold, J.V., Institut Pro Vychovu Vedoucicn Pracovniku Chemickeho Prumyclu Praha, Czechoslovakia, 1972 Volume(issue)/page/year: -,16,1972

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

ROUTE OF EXPOSURE :: Intramuscular

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 250 mg/kg

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

REFERENCE :: EMSUA8 Experimental Medicine and Surgery. (Brooklyn, NY) V.1-29, 1943-71. Suspended. Volume(issue)/page/year: 4,223,1946 *** U.S. STANDARDS AND REGULATIONS *** EPA FIFRA 1988 PESTICIDE SUBJECT TO REGISTRATION OR RE-REGISTRATION FEREAC Federal Register. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) V.1- 1936- Volume(issue)/page/year: 54,7740,1989 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 83818 No. of Facilities: 9820 (estimated) No. of Industries: 107 No. of Occupations: 77 No. of Employees: 49018 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 83818 No. of Facilities: 13232 (estimated) No. of Industries: 123 No. of Occupations: 104 No. of Employees: 289281 (estimated) No. of Female Employees: 145939 (estimated)

Personal Protective Equipment	Eyeshields;Gloves
Hazard Codes	Xi: Irritant;
Risk Phrases	R36/37/38
Safety Phrases	S26-S36
RIDADR	NONH for all modes of transport
WGK Germany	1
RTECS	WA1900000
HS Code	2835220000

HS Code	2835220000

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