NSC 26002
propazine
CAS: 139-40-2
Molecular Formula: C9H16ClN5
NSC 26002 - Names and Identifiers
NSC 26002 - Physico-chemical Properties
| Molecular Formula | C9H16ClN5 |
| Molar Mass | 229.71 |
| Density | 1.162 |
| Melting Point | 212-214°C |
| Boling Point | 368.7°C (rough estimate) |
| Flash Point | 11°C |
| Water Solubility | 8.6mg/L(22 ºC) |
| Vapor Presure | 0Pa at 25℃ |
| Appearance | neat |
| Merck | 13,7904 |
| BRN | 747081 |
| pKa | 2.28±0.10(Predicted) |
| Storage Condition | APPROX 4°C |
| Refractive Index | 1.6110 (estimate) |
| Physical and Chemical Properties | Pure product is colorless powder; Melting Point: 212~214 ℃, vapor pressure 0.0039mmPa(20 ℃); Φ1.162g/cm3(20 ℃). Solubility:(20 ℃) 5.0mg/l in water;(22 ℃) 6.2g/kg in benzene and toluene; 2.5g/kg in carbon tetrachloride; Stable in neutral, weak acid or weak alkaline medium, in the strong acid and alkali can be hydrolyzed into no herbicidal properties of the hydroxyl derivatives, the higher the temperature, the faster the hydrolysis, non-corrosive. |
| Use | Herbicides, suitable for millet, corn, sorghum, sugarcane, celery, pea and other crops |
NSC 26002 - Risk and Safety
| Risk Codes | R40 - Limited evidence of a carcinogenic effect R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R39/23/24/25 - R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R11 - Highly Flammable |
| Safety Description | S36/37 - Wear suitable protective clothing and gloves. S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S24 - Avoid contact with skin. S16 - Keep away from sources of ignition. S7 - Keep container tightly closed. |
| UN IDs | UN 3077 |
| WGK Germany | 3 |
| RTECS | XY5300000 |
| HS Code | 29336990 |
| Hazard Class | 9 |
| Packing Group | III |
| Toxicity | LD50 orally in rats: >5000 mg/kg (Bailey, White) |
NSC 26002 - Upstream Downstream Industry
| Downstream Products | Prometryne |
NSC 26002 - Reference Information
| LogP | 3.01 at 25℃ and pH7.1 |
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| herbicides | triazobenzene endogenous and selective herbicides. Chemical name: 2-chloro -4, 6-diisopropylamine -1,3, 5-triazobenzene. The pure product is colorless crystalline with melting point of 212~214 ℃ and vapor pressure of 386.6 × 10-8Pa at 20 ℃. Almost insoluble in water, hardly soluble in organic solvents, but can be recrystallized from 2-ethoxyethanol and dimethylformamide. The purity of industrial products is greater than 95%, stable in neutral, weak acid or weak alkali solution, and easy to decompose in case of strong acid and strong alkali. It can be absorbed by the root system and transmitted to the leaves, inhibiting the Hill reaction of photosynthesis, causing the leaves to lack green and the plants to starve and die. It can be used in corn, sorghum, millet, orchards and nurseries to control weeds such as crabgrass, bristlegrass, barnyard grass, bluegrass, wheat niang, polygonum quinoa, chickweed, shepherd's purse, etc. The residue period in the soil is long, and the crops sensitive to the latter are prone to phytotoxicity. Low toxicity to humans and animals, acute oral LD50>5000mg/kg in rats and acute percutaneous LD50>10200mg/kg in rabbits. Figure 1 is the structural formula of Extinguishing Tianjin. |
| toxicity | acute oral LD50>7 g/kg to rats. Acute percutaneous LD50: rats> 3.1 g/kg, rabbits> 10.2 g/kg. Slight irritation to rabbit skin and eyes. Acute inhalation of LC50(4 hours)>2.04mg/ L air in rabbits. In the 130-day feeding experiment, 250 mg/kg feed had no effect on female and male rats. 90-day feeding dose (WP 800g ai/kg): 200mg ai/kg feed for rats [13mg/(kg d)] and 200mg ai/kg feed for dogs [7mg/(kg d)]. Quail and mallard LC50 (8 days)>10g/kg. Fish poison LC50(96 hours): rainbow trout 17.5mg/L, blue gill> 100mg/L, goldfish> 32.0mg/L. Non-toxic to bees. |
| mode of action and mechanism | Extinguishing Tianjin is a selective internal absorption conduction herbicide for soil treatment. The mechanism of action is similar to that of simazin. The internal absorption is faster than simazin, and its mobility in the soil is greater than that of simazin. Has a certain touch effect. |
| applicable crops | millet, corn, sorghum, sugar cane, carrots, celery, peas, etc. |
| control objects | annual gramineous weeds and broadleaf weeds. The lethality to dicotyledonous weeds was greater than that to monocotyledonous weeds. It also has a certain lethality to some perennial weeds. Extinguishing Tianjin has a significant control effect on newly germinated weeds, and has a poor effect on larger weeds and perennial deep-rooted weeds. |
| usage | use in corn, millet and sorghum fields. 3-5 days after sowing, 3-6kg of 50% extinguished Tianjin per hectare are sprayed with water for soil treatment. Weeds in the nursery can be treated with stems and leaves. 1.5- 7.5kg of 50% is used for Pinus massoniana seedlings per hectare, 0.75-1.5 is used for sycamore seedlings, and water is sprayed. |
| Preparation method | In the presence of acid binding agent, cyanuric chloride reacts with two equivalent isopropylamines to obtain extermination. Figure 2 is a roadmap for the chemical reaction of the preparation of extermination. |
| analysis method | 1. after treatment with morpholine, the amount of HCl released is determined; 2. potentiometric titration with perchloric acid. |
| determination of residual amount | 1. after extinguishing the net transfer reaction into hydroxyl derivative, carry out ultraviolet absorption; 2. thin layer chromatography and gas chromatography. |
| development unit | herbicidal activity was reported by H.Gysin et al. in 1957, Swiss Ciba-Geigy Ltd in 1958. Developed and promoted by J.R.Geigy S.A. (now Novartis Crop Protection AG, no longer produced and sold) in 1960, with patent Swiss P 329277;BP 814947;US 2891855;BE 540947. |
| uses | to extinguish selective triazine herbicides of the Tianjin system, and to control broad-leaved and gramineous weeds in sorghum and umbelliaceae crops fields before bud, with an dosage of 0.5-3.0kg(a. I.)/hm2. Herbicide, suitable for millet, corn, sorghum, sugar cane, celery, peas and other crops |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 02:00:06
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Multiple SpecificationsSpot supply
Product Name: Propazine Visit Supplier Webpage Request for quotationCAS: 139-40-2
Tel: 609-228-6898
Email: sales@medchemexpress.com
tech@medchemexpress.com
Mobile: 609-228-6898
Spot supply
Product Name: Propazine Visit Supplier Webpage Request for quotationCAS: 139-40-2
Tel: +86-400-900-4166
Email: product@acmec-e.com
Mobile: +86-18621343501
QQ: 2881950922
Wechat: 18621343501
WhatsApp: +86-18621343501
Multiple Specifications
Product Name: Propazine Visit Supplier Webpage Request for quotationCAS: 139-40-2
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
View History
NSC 26002
L-ALPHA,BETA-ISOPROPYLIDENEGLYCEROL
涤纶高速纺丝油剂
DV菊酸甲酯
奈氏试剂
BOC-HIS(BOC)
1H-Imidazole, 2-[1-(2,6-dichlorophenoxy)ethyl]-4,5-dihydro-
LITHIUM ACID OXALATE
发泡剂OPEX
hiprex
L-ALPHA,BETA-ISOPROPYLIDENEGLYCEROL
涤纶高速纺丝油剂
DV菊酸甲酯
奈氏试剂
BOC-HIS(BOC)
1H-Imidazole, 2-[1-(2,6-dichlorophenoxy)ethyl]-4,5-dihydro-
LITHIUM ACID OXALATE
发泡剂OPEX
hiprex
Downstream Products for NSC 26002