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Fungicides

Iprobenfos

Also known as Kitazin P, Kitazin L, Ricid II

CAS 26087-47-8Formula C13H21O3PSMolar mass 288.35 g/molEC 247-449-0
GHS signal word: Warning. Pictograms: Harmful or irritant, Hazardous to the environment 6 suppliers listed
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Iprobenfos chemical structure, C13H21O3PS, CAS 26087-47-8
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
26087-47-8
Formula
C13H21O3PS
Molar mass
288.35 g/mol
EC number
247-449-0
HS code
293090
Category
Fungicides

What is Iprobenfos?

Plain description, key identifiers and synonyms

Iprobenfos is an organic thiophosphate that is the S-benzyl O,O-diisopropyl ester of phosphorothioic acid. Used as a rice fungicide to control leaf and ear blast, stem rot and sheath blight. It has a role as a phospholipid biosynthesis inhibitor and an antifungal agrochemical.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
di(propan-2-yloxy)phosphorylsulfanylmethylbenzene
CAS number
26087-47-8 CAS number cross-checked
EC number
247-449-0
Molecular formula
C13H21O3PS
UNII
OV3YOE2895
InChIKey
FCOAHACKGGIURQ-UHFFFAOYSA-N
InChI
InChI=1S/C13H21O3PS/c1-11(2)15-17(14,16-12(3)4)18-10-13-8-6-5-7-9-13/h5-9,11-12H,10H2,1-4H3
SMILES (canonical and isomeric)
CC(C)OP(=O)(OC(C)C)SCC1=CC=CC=C1

Synonyms

  • Kitazin P
  • Kitazin L
  • Ricid II
  • S-Benzyl O,O-diisopropyl phosphorothioate
  • O,O-Diisopropyl S-benzyl thiophosphate
  • O,O-Diisopropyl-S-benzylthiophosphate
  • Phosphorothioic acid, S-benzyl O,O-diisopropyl ester
  • O,O-Bis(1-methylethyl) S-(phenylmethyl)phosphorothioate
  • S-benzyl-O,O'-diisopropylphosphorothiolate
  • bis(propan-2-yl) (benzylsulfanyl)phosphonate
  • O,O diisopropyl-S-benzylthiophosphate
  • Iprofenfos
  • Ricid P
  • S-Benzyl diisopropyl phosphorothioate
  • O,O-Diisopropyl S-benzyl phosphorothiolate
  • S-Benzyl diisopropylphosphorothiolate
  • Phosphorothioic acid, O,O-bis(1-methylethyl) S-(phenylmethyl) ester
  • S-Benzyl O,O-diisopropyl thiophosphate
  • O,O-Diisopropyl S-Benzyl phosphorothioate
  • di(propan-2-yloxy)phosphorylsulfanylmethylbenzene
  • O,O-Diisopropyl-S-benzylester kyseliny thiofosforecne
  • O,O-Bis(1-methylethyl) S-phenylmethyl phosphorothioate
  • Isokitazine, Kitazin 17, Kitazin L, Kitazin P, IBP
  • Iprobenfos standard solution
  • Iprobenfos 1000 microg/mL in Acetone
Show all 33 synonyms
  • Iprobenfos 10 microg/mL in Cyclohexane
  • Iprobenfos 10 microg/mL in Acetonitrile
  • S-benzyl O,O-dipropan-2-yl phosphorothioate
  • Iprobenfos, PESTANAL(R), analytical standard
  • S-Benzyl O,O-di(propan-2-yl) phosphorothioate
  • S-Benzyl O,O-diisopropyl phosphorothioate, 8CI
  • O,O-Bis(1-methylethyl) S-phenylmethyl phosphorothioate, 9CI
  • O,O-Bis(1-methylethyl) S-(phenylmethyl) phosphorothioate

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
288.35 g/molcalc.
Exact mass
288.0949 Dacalc.
LogP (octanol/water)
4.88calc.
Topological polar surface area
35.53 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
7calc.
Heavy atoms
18calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.54calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, c1ccccc1

c1ccccc1

1 ring, 6 atoms, the Benzene ring system.

485,677 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H302Harmful if swallowed.
  • H411Toxic to aquatic life with long lasting effects.
Precautionary statements (7)
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P273Avoid release to the environment.
  • P301 + P317If swallowed: Get medical help.
  • P330Rinse mouth.
  • P391Collect spillage.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Iprobenfos suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 6 suppliers
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Where suppliers are based

6 suppliers in 4 countries

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Iprobenfos price

Indicative price range per kg from live supplier offers

No published prices right now

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Uses and applications

What the substance is used for, by industry and function

Roles

  • agrochemical
  • antifungal agent
  • antifungal agrochemical
  • antimicrobial agent
  • fungicide
  • pesticide
  • phospholipid biosynthesis inhibitor

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 015-127-00-7

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Iprobenfos is traded under.

HS 2930.90Indicative HS code

Organo-sulphur compounds, other

World exports in 2024
$5.83B
+0.1% vs 2023, imports $5.93B
2019 to 2024
Top exporters
  1. China40.7%
  2. United States10.9%
  3. Japan9.3%
Top importers
  1. United States13.3%
  2. Brazil12.6%
  3. China6.6%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Iprobenfos is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Iprobenfos, based on the data on this page

What is Iprobenfos?

Iprobenfos is an organic thiophosphate that is the S-benzyl O,O-diisopropyl ester of phosphorothioic acid. Used as a rice fungicide to control leaf and ear blast, stem rot and sheath blight. It has a role as a phospholipid biosynthesis inhibitor and an antifungal agrochemical.

What is the CAS number of Iprobenfos?

The CAS registry number of Iprobenfos is 26087-47-8.

What is the molecular formula and weight of Iprobenfos?

The molecular formula of Iprobenfos is C13H21O3PS and its molar mass is 288.35 g/mol.

What is Iprobenfos used for?

Known uses and roles of Iprobenfos include fungicides in agriculture and crop protection, agrochemical, antifungal agent, antifungal agrochemical, antimicrobial agent and 3 more.

Is Iprobenfos hazardous?

Iprobenfos carries the GHS signal word "Warning". Main hazards: harmful if swallowed, toxic to aquatic life with long lasting effects. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Iprobenfos?

Iprobenfos is usually classified under HS code 293090 (Organo-sulphur compounds, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Iprobenfos?

CompoundList lists 6 suppliers of Iprobenfos in China, India, Japan and Singapore. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Iprobenfos in India?

1 supplier in India list Iprobenfos on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Iprobenfos?

Suppliers quote Iprobenfos on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Iprobenfos

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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