HOME > Herbicide
Name Of Product CAS NO. Specification MSDS
Oryzalin 19044-88-3 95%TC



Introduction: Oryzalin is effective against annual bluegrass, crabgrass, Spurge (prostrate), goosegrass, groundsel, knotweed, foxtail, and more in ornamental plantings, established warm season turfgrass, Christmas tree plantations, ground covers/perennials, non-bearing fruit and nut trees and vines, and non-cropland and industrial sites.    

Common name: Oryzalin

Another name: Surflan; Dirimal; 4-(Dipropylamino)-3,5-dinitrobenzenesulfonamide; Ryzelan; etc.

Chemical name: 3,5-dinitro-N4,N4-dipropylsulfanilamide

Empirical formula: C12H18N4O6S

Structural formula:

Mol. Weight: 346.36 g/mol

CAS No.: 19044-88-3


Leading Oryzalin supplier

Oryzalin 95% TC

Oryzalin 75% WP

Oryzalin 85% WDG


BULK PACKING                                                     

Powder: 25kg/Bag, 25kg/Drum, 50kg/Drum etc.                    

Liquid: 200L/Drum, 20L/Drum, 10L/Drum etc.


Powder: 1kg/Alu bag, 500g/Alu bag, 200g/Alu bag, 100g/Alu bag, 50g/Alu bag, 15g/Alu bag etc. 

Liquid: 5L/Drum, 1L/Bottle, 500ml/Bottle, 250ml/Bottle, 100ml/Bottle, 50ml/Bottle etc.

Customerized packing label

Oryzalin FAO standard

Professional registration


Hazard statement(s)

H317 (97.5%): May cause an allergic skin reaction.

H400 (97.5%): Very toxic to aquatic life.

H410 (97.5%): Very toxic to aquatic life with long lasting effects.

Precautionary statement(s)

P261: Do not breathe dust/fume/gas/mist/vapors/spray.

P272: Contaminated work clothing should not be allowed out of the workplace.

P273: Avoid release to the environment.

P280: Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352: IF ON SKIN: wash with plenty of water.

P321: Specific treatment (see ... on this label).

P333+P313: IF SKIN irritation or rash occurs: Get medical advice/attention.

P363: Wash contaminated clothing before reuse.

P391: Collect spillage.

P501: Dispose of contents/container to an approved waste disposal plant.

Supplemental Hazard Statements: none.


Acute toxicity: 1) Acute oral LD50 for rats is >5000 a.i.mg/kg. 2) Acute dermal LD50 for rats is >2000 a.i.mg/kg. 3) Acute inhalation toxicity LC50 (4 h) for rats is >4.79 a.i.mg/L. 4) Skin irritation: Slightly irritating to skin (rabbits). 5) Eye irritation: Slightly irritating to eyes (rabbits). 6) Skin sensitization for guinea pig: Non-sensitizing.

NOEL: (2 y) for rats is 75 mg/kg/day; (18 m) for mice is 15 mg/kg/day. Other Not mutagenic.

ADI 0-0.005 mg/kg b.w.


WHO Classification: U (Unlikely to present an acute hazard)

EC Risk Classification: Carcinogen category 3: R40; Xn - Harmful: R43;  N - Dangerous for the environment: R50, R53   

US EPA Classification (formulation): III (Caution - Slightly toxic)


Effect on birds: Acute oral LD50 for Mallard is 427 a.i.mg/kg. Effect on fish: Acute LC50 (96 h) for Rainbow trout is 2.86 a.i.mg/l. Effects on aquatic invertebrates: Acute EC50 (48 h) for Daphnia magna is 1.02 a.i.mg/l. Effects on algae: Acute 72 hour EC50 for Anabaena flos-aquae is 18.1 a.i.mg/l. Effects on bees: contact acute 48 hour LD50 is 40.8 a.i.μg/bee, oral acute 48 hour LD50 is 32 a.i.μg/bee. Effects on earthworms: Acute 14 day LC50 is >500 a.i.mg/kg.  


Breakdown of Chemical in Soil and Groundwater: Oryzalin is soluble in water and it does not have a strong tendency to adsorb to soil particles. It leaches downward to a limited extent with rainfall and has a moderate potential to contaminate groundwater. Its soil half-life is 20 days. Microbial degradation may be responsible for the breakdown of oryzalin in soils. It is subject to photodecomposition, but not volatilization, at the soil surface. Breakdown of Chemical in Surface Water: Oryzalin has a low solubility in water. There was no observed hydrolysis at pH 5, 7, 9. Breakdown of Chemical in Vegetation: Plant metabolism of oryzalin is minimal. Unmetabolized oryzalin is rarely detected. When used at the recommended level, damage to plants in the following year is not expected.  

Usage: Oryzalin was introduced by DowElanco. Oryzalin is a selective preemergence surface-applied herbicide used for control of annual grasses and broadleaf weeds in fruit trees, nut trees, vineyards, established bermudagrass turf and established ornamentals. It inhibits the growth of germinating weed seeds.

Application: Bud before herbicides, can use or other herbicides in practice. Control the fruit trees, cotton, peanuts, winter rape, soybean and sunflower fields such as the weeds and applicable lawn weeding.                                                

Biological Pesticide
Plant Growth Regulator
Fungicide Mixture
Herbicide Mixture
Insecticide Mixture
Multifunction Pesticide Mixture
  Contact us

Add: No.52,Puchang Road,Puzhou Industrial Park,Longwan District,Wenzhou Zhejiang P.R. China

Tel: +86-577-88905587,88908857,

Fax: +86-577-88905567

RAYFULL   Alibaba.com   facebook  
Copyright © 2012 Zhejiang Rayfull Chemicals Co.,Ltd. All Rights Reserve 浙ICP备10013254号-4
Tel: +86-577-88905587,88908857  Fax:+86-577-88905567
Lucy Lin
Call me!Lucy Lin
Tim Chen
Call me!Tim Chen
Jason Xu
Call me!Jason
Tina Ye
Call me!Tina
Sunny Lin
Call me!Sunny
Tracy Xue
Call me!Tracy
Emma (Russian)
Call me!Emma(Russian)