Bladex CAS 21725-46-2

Introduction:Basic information about Bladex CAS 21725-46-2, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.

Bladex Basic information

Product Name:Bladex
Synonyms:2-(4-CHLORO-6-(ETHYLAMINO)-1,3,5-TRIAZIN-2-YLAMINO)-2-METHYLPROPANENITRILE;2-(4-CHLORO-6-ETHYLAMINO-S-TRIAZIN-2-YL AMINO)-2-METHYLPROPIONITRILE;BLADEX;'LGC' (1635);CY-PRO;Cyanizine;CYANAZIN;CYANAZINE
CAS:21725-46-2
MF:C9H13ClN6
MW:240.69
EINECS:244-544-9
Product Categories:Agro-Products;Amines;Aromatics;Bases & Related Reagents;Isotope Labelled Compounds;Nucleotides;CO - CZEPA;Method 508EPA;Method 629;500 Series Drinking Water Methods;600 Series Wastewater Methods;Alpha sort;C;CAlphabetic;Pesticides&Metabolites;BI - BZ;Alphabetic;B;CO - CZPesticides&Metabolites;Volatiles/ Semivolatiles;CO - CZAnalytical Standards;Chromatography;Herbicides;Standards for SupelMIPTM SPEPesticides&Metabolites;Triazines;HERBICIDE;Organics
Mol File:21725-46-2.mol

Bladex Chemical Properties

Melting point 167°C
Boiling point 383.12°C (rough estimate)
density 1.2870 (rough estimate)
refractive index 1.6000 (estimate)
Fp 100 °C
storage temp. APPROX 4°C
solubility DMSO: 100 mg/mL (415.47 mM)
form Granular Powder
pka1.46±0.41(Predicted)
color Off-white
Water Solubility 0.0171 g/100 mL
Merck 13,2714
BRN 615509
Major Applicationagriculture
environmental
InChI1S/C9H13ClN6/c1-4-12-7-13-6(10)14-8(15-7)16-9(2,3)5-11/h4H2,1-3H3,(H2,12,13,14,15,16)
InChIKeyMZZBPDKVEFVLFF-UHFFFAOYSA-N
SMILESCCNc1nc(Cl)nc(NC(C)(C)C#N)n1
CAS DataBase Reference21725-46-2(CAS DataBase Reference)
NIST Chemistry ReferenceCyanazine(21725-46-2)
EPA Substance Registry SystemCyanazine (21725-46-2)

Safety Information

Hazard Codes Xn;N,N,Xn,T,F
Risk Statements 22-50/53-39/23/24/25-23/24/25-36-20/21/22-11-52/53
Safety Statements 37-60-61-45-36/37-36-26-16
RIDADR UN 2588/2811
WGK Germany 3
RTECS UG1490000
HazardClass 6.1(b)
PackingGroup III
Storage Class6.1C - Combustible acute toxic Cat.3
toxic compounds or compounds which causing chronic effects
Hazard ClassificationsAcute Tox. 3 Oral
Aquatic Acute 1
Aquatic Chronic 1
Hazardous Substances Data21725-46-2(Hazardous Substances Data)
ToxicityLD50 in rats, mice (mg/kg): 182, 380 orally (Chapman)

Bladex Usage And Synthesis

DescriptionCyanazine is an off-white to tan crystallinesolid. Molecular weight=240.73; Freezing/Meltingpoint=167-169℃. Hazard Identification (based on NFPA-704 M Rating System): Health 2, Flammability 1,Reactivity 0. Soluble in water. Physical properties may bealtered by carrier solvents used in commercial formulations
Chemical PropertiesCyanazine is an off-white to tan crystallinesolid. Molecular . Hazard identification (based on NFPA-704 MRating System): Health 2, flammability 1, reactivity 0.Soluble in water. Physical properties may be altered by car-rier solvents used in commercial formulations.
UsesSelective pre-emergence herbicide.
UsesSelective pre- and postemergence herbicide tocontrol weeds in crops such as alfalfa, corn, cotton,sorghum, soybeans, and wetland.
UsesHerbicide used for control of annual grasses and broad-leaved weeds in cereals,cotton, maize, onions, peanuts, peas, potatoes, soybeans, sugarcane and wheat fallow
DefinitionChEBI: Cyanazine is a chloro-1,3,5-triazine that is 2-chloro-1,3,5-triazine substituted by an ethyl amino and a (2-cyanopropan-2-yl)amino group at positions 6 and 4 respectively. It has a role as a herbicide, an environmental contaminant and a xenobiotic. It is a 1,3,5-triazinylamino nitrile and a chloro-1,3,5-triazine.
General DescriptionColorless crystals. Non corrosive when dry. Used as a selective systemic herbicide.
Air & Water ReactionsStable at pHs between 5.0 and 9.0, but is hydrolyzed by strong acids and bases.
Reactivity ProfileA triazine derivative.
HazardVery toxic.
Agricultural UsesHerbicide: On August 2, 1995, the U.S. EPA announced a voluntary phase-out of the use of cyanazine. On January 6,2000, the U.S. EPA announced the cancellation of all cyanazine registrations. It had been A U.S. EPA restricted UsePesticide (RUP) because of its teratogenicity and because ithas been found in groundwater. Not approved for use in EUcountries. Cyanazine is used as a pre-and post-emergentherbicide to control annual grasses and broadleaf weeds. Itis used mostly on corn, some on cotton, and less than 1%on grain sorghum and wheat fallow. The compound is formulated as a wettable powder, a flowable suspension, or asgranules. In California, major usages are on cotton, cornand corn for forage, almonds, and uncultivated agriculturalareas. In 1995, cyanazine was the fourth most widely usedsynthetic pesticide in the U.S. Cyanazine, atrazine, and simazine are collectively referred to as the triazines and maybe alternatively used for each other on corn and in someother situations.
Trade nameBLADEX®[C]; BLADEX® 80WP[C];BULLET®; CYCLE®; CY-PRO®[C]; CYNEX®41[C]; DW 3418®; EXTRAZINE®[C]; FORTROL®;MATCH®; PAYZE®; SD 15418®; WL 19805®
Potential ExposureA potential danger to those involvedin the manufacture, formulation, and application of this her-bicide used for preemergence or postemergence weed con-trol in field corn.
First aidIf this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least15 min, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts theskin, remove contaminated clothing and wash immediatelywith soap and water. Seek medical attention immediately. Ifthis chemical has been inhaled, remove from exposure,begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR ifheart action has stopped. Transfer promptly to a medicalfacility. When this chemical has been swallowed, get medical attention. Give large quantities of water and inducevomiting. Do not make an unconscious person vomit.
CarcinogenicityNo increase in tumor incidencewas noted in rats fed up to 50 ppm of cyanazine for 2 years.The same was true for mice given up to 1000 ppm in theirdiets for 2 years.
Environmental FateSoil. In sandy loam soils (foc = 0.01), the half-life is 12–15 days. However, in silt loam(foc = 0.028) and clay loam (foc = 0.03) soils, the reported half-life is 20–25 days (Humburget al., 1989). The half-life of cyanazine is longer in alkaline soils (pH >7.5) than in acidicsoils (pH <5.5) (Humburg et al., 1989)
Groundwater. According to the U.S. EPA (1986) cyanazine has a high potential toleach to groundwater. Cyanazine amide was identified as a metabolite in groundwater incorn fields (Muir and Baker, 1976)
Plant. In plants, cyanazine is degraded by elimination of the ethyl group, hydrationof the cyano group and the removal and replacement of the chlorine atom by a hydroxylgroup (Humburg et al., 1989).
Chemical/Physical. In laboratory tests, the nitrile group was hydrolyzed to the corresponding carboxylic acid. The rate of hydrolysis is faster under higher temperatures andlow pHs (Grayson, 1980). The chlorine atom may be replaced by a hydroxyl group forming2((4-hydroxy-6-(ethylamino)-1,3,5-triazin-2-yl)amino)-2-methylpropanenitrile (Hartleyand Kidd, 1987)
storageColor Code—Blue: Health Hazard/Poison: Storein a secure poison location. Prior to working with cyanazineyou should be trained on its proper handling and storage.Store in tightly closed containers in a cool, well-ventilatedarea away from heat. Where possible, automatically pumpliquid from drums or other storage containers to processcontainers.
ShippingUN2763 Triazine pesticides, solid, toxic, HazardClass: 6.1; Labels: 6.1-Poisonous materials. UN3439Nitriles, solid, toxic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required.
IncompatibilitiesCyanazine decomposes in heat producingvery toxic fumes and gases of hydrogen cyanide, hydrogenchloride; ethyl chloride; ammonia; acetone; and ethylene.Nitriles may polymerize in the presence of metals and somemetal compounds. They are incompatible with acids; mixingnitriles with strong oxidizing acids can lead to extremelyviolent reactions. Nitriles are generally incompatible withother oxidizing agents such as peroxides and epoxides. Thecombination of bases and nitriles can produce hydrogen cya-nide. Nitriles are hydrolyzed in both aqueous acid and baseto give carboxylic acids (or salts of carboxylic acids). Thesereactions generate heat. Peroxides convert nitriles to amides.Nitriles can react vigorously with reducing agents.Acetonitrile and propionitrile are Soluble in water, butnitriles higher than propionitrile have low aqueous solubility.They are also insoluble in aqueous acids.Attacksmetalsin the presence of heat and moisture.
Waste DisposalDissolve or mix the materialwith a combustible solvent and burn in a chemical incinera-tor equipped with an afterburner and scrubber. All federal,state, and local environmental regulations must beobserved. In accordance with 40CFR165, follow recom-mendations for the disposal of pesticides and pesticide containers. Must be disposed properly by following pack-age label directions or by contacting your local or federalenvironmental control agency, or by contacting yourregional EPA office.

Bladex Preparation Products And Raw materials

Raw materialsCyanuric chloride-->Isobutyronitrile
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