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Glyphosate

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Glyphosate

EINECS 213-997-4
CAS No. 1071-83-6 Density 1.679 g/cm3
Solubility 1.2 g/100 mL in water Melting Point 230 °C
Formula C3H8NO5P Boiling Point 465.8 °C at 760 mmHg
Molecular Weight 169.09 Flash Point 235.5 °C
Transport Information UN 3077 9/PG 3 Appearance white powder
Safety 26-61-2-36/37/39 Risk Codes 41-51/53-62-36/37/38-22
Molecular Structure Molecular Structure of 1071-83-6 (Glyphosate) Hazard Symbols IrritantXi,DangerousN,HarmfulXn
Synonyms

Hockey;Accord;N-(Phosphonomethyl) Glycine;Glyphosphate;Isopropylamine glyphosate;(Carboxymethylamino)methylphosphonic acid;Glyphosate isopropyl amine salt aqueous solution(41%);MON 0573;MON 2139;Glyphosate 95%TC;Water Soluble Glyphosate;Herbatop;Rebel Garden;Glycine, N- (phosphonomethyl)-;Glycine,N-(phosphonomethyl)-;Lancer;Glyphodin A;N-(Phosphonomethyl)glycine;Agrochemicals,Herbicide,Insecticide,Pesticide;Glyphosate acid;Glyphosate tech;glyphsate;Forsat;((phosphonomethyl)amino)acetic acid;Glialka;2-(phosphonomethylamino)acetic acid;N-Glycine;

 

Glyphosate History

Initially patented and sold by Monsanto in the 1970s under the tradename Roundup, its U.S. patent expired in 2000. It is now also available in other formulations, e.g. Resolva 24H, which contains glyphosate and diquat. Glyphosate is the most used herbicide in the USA.In the US, 5-8 million pounds are used every year on lawns and yards and 85-90 million pounds are used annually in US agriculture.
  Glyphosate (CAS NO.1071-83-6) was first discovered to have herbicidal activity in 1970 by John E. Franz, while working for Monsanto. Franz received the National Medal of Technology in 1987,and the Perkin Medal for Applied Chemistry. in 1990 for his discoveries.

Glyphosate Consensus Reports

When Glyphosate (CAS NO.1071-83-6) comes into contact with the soil it can be rapidly bound to soil particles and be inactivated. Unbound glyphosate can be degraded by bacteria.However, glyphosphate has been shown to increase the infection rate of wheat by fusarium head blight in fields that have been treated with glyphosphate.
In soils, half lives vary from as little as 3 days at a site in Texas, 141 days at a site in Iowa, to between 1–3 years in Swedish forest soils.It appears that higher latitude sites have the longest soil persistences such as in Canada and Scandinavia.

Glyphosate Specification

Glyphosate,with the CAS NO.1071-83-6, is an organic solid of odorless white crystals. It is a non-selective herbicide used on many food and non-food crops as well as non-crop areas such as roadsides. Glyphosate comes in many forms, including an acid and several salts. These can be either solids or an amber-colored liquid.

Physical properties about Glyphosate are: (1)ACD/LogP: 0.272; (2)ACD/LogD (pH 5.5): -3.35; (3)ACD/LogD (pH 7.4): -4.13; (4)ACD/BCF (pH 5.5): 1.00; (5)ACD/BCF (pH 7.4): 1.00; (6)ACD/KOC (pH 5.5): 1.00; (7)ACD/KOC (pH 7.4): 1.00; (8)#H bond acceptors: 6; (9)#H bond donors: 4; (10)#Freely Rotating Bonds: 4; (11)Index of Refraction: 1.529; (12)Molar Refractivity: 31.051 cm3; (13)Molar Volume: 100.656 cm3; (14)Polarizability: 12.309 10-24cm3; (15)Surface Tension: 86.3440017700195 dyne/cm; (16)Density: 1.68 g/cm3; (17)Flash Point: 235.528 °C; (18)Enthalpy of Vaporization: 79.713 kJ/mol; (19)Boiling Point: 465.835 °C at 760 mmHg

Uses of Glyphosate: Glyphosate is effective in killing a wide variety of plants, including grasses, broadleaf, and woody plants. It has a relatively small effect on some clover species. By volume, it is one of the most widely used herbicides. It is commonly used for agriculture, horticulture, and silviculture purposes, as well as garden maintenance (including home use).

When you are using this chemical, please be cautious about it as the following:
1. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice;
2. Wear eye/face protection;
3. Avoid release to the environment. Refer to special instructions safety data sheet;
4. Keep out of the reach of children;
5. Wear suitable gloves;
6. Wear suitable protective clothing;

You can still convert the following datas into molecular structure:
(1)InChI=1S/C3H8NO5P/c5-3(6)1-4-2-10(7,8)9/h4H,1-2H2,(H,5,6)(H2,7,8,9);
(2)InChIKey=XDDAORKBJWWYJS-UHFFFAOYSA-N;
(3)SmilesP(=O)(CNCC(=O)O)(O)O;

The toxicity data is as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
man LDLo oral 2143mg/kg (2143mg/kg) VASCULAR: BP LOWERING NOT CHARACTERIZED IN AUTONOMIC SECTION

LUNGS, THORAX, OR RESPIRATION: FIBROSIS (INTERSTITIAL)

LUNGS, THORAX, OR RESPIRATION: FIBROSING ALVEOLITIS
Journal of Toxicology, Clinical Toxicology. Vol. 29, Pg. 91, 1991.
 
man TDLo oral 1214mg/kg (1214mg/kg) VASCULAR: BP LOWERING NOT CHARACTERIZED IN AUTONOMIC SECTION

GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA"

CARDIAC: CHANGE IN RATE
Human & Experimental Toxicology. Vol. 10, Pg. 103, 1991.
 
mouse LD50 intraperitoneal 130mg/kg (130mg/kg) LUNGS, THORAX, OR RESPIRATION: RESPIRATORY STIMULATION

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD
Toxicology Letters. Vol. 1000(Sp,
mouse LD50 oral 1568mg/kg (1568mg/kg) LUNGS, THORAX, OR RESPIRATION: RESPIRATORY STIMULATION

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD
Toxicology and Applied Pharmacology. Vol. 45, Pg. 319, 1978.
quail LD50 oral > 4640mg/kg (4640mg/kg)   Pesticide Manual. Vol. 9, Pg. 459, 1991.
rabbit LD50 oral 3800mg/kg (3800mg/kg)   Pesticide & Toxic Chemical News. Vol. 7, Pg. 6, 1978.
rabbit LD50 skin 7940mg/kg (7940mg/kg)   "Agrochemicals Handbook," with updates, Hartley, D., and H. Kidd, eds., Nottingham, Royal Soc of Chemistry, 1983-86Vol. A222, Pg. 1984,
rat LC50 inhalation > 12200mg/m3/4 (12200mg/m3)   "Agrochemicals Handbook," with updates, Hartley, D., and H. Kidd, eds., Nottingham, Royal Soc of Chemistry, 1983-86Vol. A222, Pg. 1984,
rat LD50 intraperitoneal 235mg/kg (235mg/kg) LUNGS, THORAX, OR RESPIRATION: RESPIRATORY STIMULATION

BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD
Toxicology Letters. Vol. 1000(Sp,
rat LD50 oral 4873mg/kg (4873mg/kg)   Toxicology and Applied Pharmacology. Vol. 45, Pg. 319, 1978.
rat LD50 oral 4873mg/kg (4873mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

LUNGS, THORAX, OR RESPIRATION: RESPIRATORY STIMULATION
Toxicology and Applied Pharmacology. Vol. 45, Pg. 319, 1978.
women LDLo oral 4gm/kg (4000mg/kg) LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION

VASCULAR: BP LOWERING NOT CHARACTERIZED IN AUTONOMIC SECTION

CARDIAC: ARRHYTHMIAS (INCLUDING CHANGES IN CONDUCTION)
Journal of Toxicology, Clinical Toxicology. Vol. 29, Pg. 91, 1991.
 

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