Glyphosate

Description

Glyphosate · CAS 1071-83-6 · C3H8NO5P. UNII 4632WW1X5A. Melting Point: 189.5; Melting Point: 230 °C (dec); Solubility: 5 to 10 mg/mL at 64 °F (NTP, 1992).

Identification

CAS Registry Number	1071-83-6
PubChem CID	3496
Molecular formula	C3H8NO5P
IUPAC name	2-(phosphonomethylamino)acetic acid
UNII (FDA)	4632WW1X5A

Computed Descriptors

Molecular Weight	169.07
XLogP3	-4.6
Hydrogen Bond Donor Count	4
Hydrogen Bond Acceptor Count	6
Rotatable Bond Count	4
Exact Mass	169.01400935
Monoisotopic Mass	169.01400935
Topological Polar Surface Area	107
Heavy Atom Count	10
Formal Charge	0

Physical & Chemical Properties

Melting Point	189.5
Melting Point	230 °C (dec)
Solubility	5 to 10 mg/mL at 64 °F (NTP, 1992)
Solubility	12000
Density	1.705 at 20 °C
Density	1.7 g/cm³
Vapor Pressure	1.94e-07 mmHg at 113 °F (NTP, 1992)
Vapor Pressure	0.0000001 [mmHg]
Vapor Pressure	9.8X10-8 mm Hg /1.31X10-2 mPa/ at 25 °C
LogP	-4

Physical description & handling notes

• Glyphosate is an odorless white powder. Decomposition begins at approximately 419 °F (darkens). pH (1% solution in water) 2.5. (NTP, 1992)
• White solid; [Merck Index] Colorless solid; [ICSC]
• COLOURLESS CRYSTALS.
• White crystals
• White solid
• Odorless

GHS Hazard Classification

Reported hazard statements	H318, H411, H351, H361, H402, H412, H336, H400

Documented Uses

• A systemic herbicide commonly used for roadside and forest applications; [EXTOXNET]
• Glyphosate is a non-selective herbicide registered for use on many food and non-food field crops as well as non-crop areas where total vegetation control is desired. When applied at lower rates, glyphosate also is a plant growth regulator.
• Control of annual and perennial grasses and broad-leaved weeds, pre-harvest, in cereals, peas, beans, oilseed rape, flax and mustard, at 1.5-2 kg/ha; control of annual and perennial grasses and broad-leaved weeds in stubble and post-planting/pre-emergence of many crops; as a directed spray in vines and olives, at up to 4.3 kg/ha; in orchards, pasture, forestry and industrial weed control, at up to 4.3 kg/ha. As an aquatic herbicide, at 2 kg/ha.
• For control of annual and perennial weeds, woody brush, and trees on over 150 crops. Use postdirected in tree and plantation crops, postemergence over Roundup Ready soybeans, and postharvest in fallow periods and noncropland.
• Information on 9 consumer products that contain Glyphosate in the following categories is provided:
• Glyphosate is produced by heating a mixture of phosphorous acid and a-amino acetic acid, and then adding formaldehyde.

Synonyms

glyphosate; 1071-83-6; N-(Phosphonomethyl)glycine; Glyphosphate; N-Phosphomethylglycine; Glyfos; N-Phosphonomethylglycine; 2-(phosphonomethylamino)acetic acid; Pondmaster; Silglif; Glycine, N-(phosphonomethyl)-; Roundup Max; Folusen; Glialka; Herbatop; Phorsat

Frequently Asked Questions

What are the CAS number and molecular formula of Glyphosate?

CAS 1071-83-6; molecular formula C3H8NO5P; molecular weight — g/mol.

What other names is Glyphosate known by?

glyphosate, 1071-83-6, N-(Phosphonomethyl)glycine, Glyphosphate, N-Phosphomethylglycine, Glyfos.

Is Glyphosate classified as hazardous?

Hazard statements reported: H318, H411, H351, H361, H402.

What are the key physical properties of Glyphosate?

Melting Point: 189.5; Melting Point: 230 °C (dec); Solubility: 5 to 10 mg/mL at 64 °F (NTP, 1992); Solubility: 12000.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.