Diafenthiuron intermediate
Diisopropyl Isothiocyanato Phenoxybenzene (DIPITPB) Supplier & Distributor in India & Worldwide
Chelora Agrochem is a trusted Diisopropyl Isothiocyanato Phenoxybenzene (DIPITPB) supplier and distributor in India, connecting buyers with high-purity material sourced from leading, quality-approved manufacturers. Our 2,6-diisopropyl-4-phenoxyphenyl isothiocyanate meets 97% min purity with controlled residual aniline, full documentation and reliable supply across India and to buyers worldwide.
As a specialised distributor of chemical products, we do not manufacture in-house — instead we source only from reliable, audited manufacturers, giving you dependable material, competitive pricing and a single point of contact for all your DIPITPB requirements, backed by COA, MSDS and TDS on every order.
- CAS number
- 80058-93-1
- Formula
- C19H21NOS
- Molecular weight
- 311.44 g/mol
- Purity
- 97% min
Quick product specifications
Diisopropyl Isothiocyanato Phenoxybenzene at a glance
Identifiers, physical data and trade codes for DIPITPB. Batch-specific figures are confirmed on the Certificate of Analysis supplied with each consignment, in India and on export shipments alike.
- Chemical name
- Diisopropyl Isothiocyanato Phenoxybenzene
- CAS number
- 80058-93-1
- Molecular formula
- C19H21NOS
- Molecular weight
- 311.44 g/mol
- IUPAC name
- 1,3-Bis(propan-2-yl)-2-isothiocyanato-5-phenoxybenzene
- EC number
- Not assigned
- HS code
- 2930 90National subheading as per destination
- UN number
- Per supplier SDSNo UN number is normally assigned to this product; the classification stated on the supplier Safety Data Sheet and the shipping documents for your consignment applies
- Appearance
- Light yellow viscous liquidLow-melting; may set to a soft solid in cold weather
- Melting point
- Low-melting — liquid at ambient
- Boiling point
- 130–140 °C at 5 Pa
- Density
- About 1.04 g/cm³Calculated value
- Flash point
- Not establishedCombustible — keep away from ignition sources
- Solubility
- Practically insoluble in waterHydrolyses slowly on contact with water; soluble in toluene, xylene, dichloromethane and THF
- Purity
- 97% min
- Synonyms
- DIPITPBDIPPI · 2,6-Diisopropyl-4-phenoxyphenyl isothiocyanate
- Product form
- Bulk liquid
- Documentation
- COA, MSDS & TDSSupplied with every order
Product overview
What is Diisopropyl Isothiocyanato Phenoxybenzene?
Diisopropyl Isothiocyanato Phenoxybenzene (DIPITPB) is the aryl isothiocyanate that becomes diafenthiuron. One addition of tert-butylamine across the N=C=S group converts it directly into the thiourea insecticide and acaricide, which is why this single intermediate effectively defines the diafenthiuron supply chain.
With the formula C19H21NOS (CAS 80058-93-1), DIPITPB is a light yellow viscous liquid that distils at 130–140 °C under high vacuum and has a density near 1.04 g/cm³. It is practically insoluble in water and hydrolyses slowly on contact with it, so moisture exclusion is the central storage requirement.
The two isopropyl groups flanking the isothiocyanate are not decoration — they shield the nitrogen and give the finished thiourea the steric bulk and stability its biological activity depends on. The phenoxy group at the far end of the ring completes the lipophilic profile the active needs.
How it is made
DIPITPB is made from 2,6-diisopropyl-4-phenoxyaniline by thiophosgenation — reaction with thiophosgene or a thiophosgene equivalent in the presence of a base — which converts the primary aromatic amine into the isothiocyanate. The crude product is washed, dried and purified by distillation under high vacuum, then packed under nitrogen and protected from light.
What that means for your process
- Controlled residual 2,6-diisopropyl-4-phenoxyaniline, checked by HPLC
- Low moisture — the isothiocyanate hydrolyses on contact with water
- Low colour and consistent viscosity for reliable metering
- Nitrogen-blanketed, light-protected packing
Applications
What is Diisopropyl Isothiocyanato Phenoxybenzene used for?
DIPITPB is a dedicated intermediate with one dominant outlet and a handful of specialty uses. Its applications include:
Diafenthiuron manufacture
The dominant outlet: addition of tert-butylamine gives the thiourea active directly.
- Single-step conversion with tert-butylamine
- Diafenthiuron technical and formulation grades
- Insecticide and acaricide for cotton, vegetables and tea
Substituted thioureas & ureas
Isothiocyanates add cleanly to amines, alcohols and thiols.
- Thioureas from primary and secondary amines
- Thiocarbamates from alcohols
- Dithiocarbamates from thiols
Heterocycles & fine chemicals
Thiourea adducts cyclise onto several useful ring systems.
- Aminothiazole and thiadiazole synthesis
- Guanidine and imidazoline derivatives
- Custom aryl isothiocyanate chemistry
Process route
How is DIPITPB converted into diafenthiuron?
In a single step. tert-Butylamine adds across the N=C=S group of the isothiocyanate to give the unsymmetrical thiourea — 1-tert-butyl-3-(2,6-diisopropyl-4-phenoxyphenyl)thiourea, which is diafenthiuron. The reaction is clean and high-yielding, so the purity of the isothiocyanate largely sets the purity of the active.
2,6-Diisopropyl-4-phenoxyaniline
The aniline precursor, carrying both isopropyl groups and the phenoxy ether.
Aniline precursorThiophosgenation
The primary aromatic amine is converted into the isothiocyanate under basic conditions.
N=C=SDIPITPB
Distilled under high vacuum and packed under nitrogen as the key intermediate.
C19H21NOSDiafenthiuron
tert-Butylamine adds across the isothiocyanate to give the thiourea active.
DiafenthiuronIn depth
Diisopropyl Isothiocyanato Phenoxybenzene applications by industry
Below is a detailed breakdown of where DIPITPB is used and the role it plays in each downstream product.
| Industry | Typical downstream products | Role of DIPITPB |
|---|---|---|
| Agrochemicals | Diafenthiuron technical and formulations | Core intermediate |
| Pharmaceuticals | Substituted thioureas and guanidines | Intermediate |
| Fine chemicals | Thiocarbamates and dithiocarbamates | Building block |
| Heterocyclic chemistry | Aminothiazoles, thiadiazoles, imidazolines | Building block |
| Contract manufacture | Custom aryl isothiocyanate chemistry | Reagent |
Safety
Is Diisopropyl Isothiocyanato Phenoxybenzene hazardous?
Yes. Aryl isothiocyanates are reactive, strongly irritating compounds. DIPITPB is harmful if swallowed or inhaled, causes serious eye damage and skin irritation, may cause an allergic skin reaction, and is harmful to aquatic life with long-lasting effects. Its vapour is a lachrymator.
DIPITPB should be stored in sealed drums under nitrogen in a cool, dry, ventilated place, protected from light and moisture and kept well away from amines, ammonia, alcohols, strong bases and oxidisers — all of which it reacts with. Handle it only with chemical-resistant gloves, goggles or a face shield and impervious clothing, in a closed transfer system or under local exhaust ventilation. Once a person is sensitised to an isothiocyanate, even trace contact can provoke a reaction, so contamination control matters as much as the PPE. A full MSDS is supplied with every order.
Signal word: Danger
Harmful if swallowed or inhaled · causes serious eye damage and skin irritation · may cause an allergic skin reaction · lachrymatory vapour · harmful to aquatic life
Safe-handling essentials
- Closed transfer or local exhaust ventilation — the vapour is lachrymatory
- Chemical-resistant gloves, goggles or face shield and impervious clothing
- Treat as a sensitiser — avoid even trace skin contact
- Keep drums sealed, nitrogen-blanketed and protected from light
- Keep away from moisture — the isothiocyanate hydrolyses on contact with water
- Store well away from amines, ammonia, alcohols, strong bases and oxidisers
- Bund storage and prevent release to drains, soil and waterways
- Confirm the transport classification on the SDS before despatch
Grades
Diisopropyl Isothiocyanato Phenoxybenzene grades & technical specifications
We supply DIPITPB in technical grade for diafenthiuron manufacture and in high-purity grades with tightened residual aniline and moisture limits.
| Parameter | Specification |
|---|---|
| Assay (purity) | 97% min |
| Appearance | Light yellow viscous liquid |
| Residual 2,6-diisopropyl-4-phenoxyaniline | 0.5% max |
| Hydrolysis products (as the urea) | 0.5% max |
| Moisture | 0.1% max |
| Colour (Gardner) | 5 max |
| Non-volatile residue | 0.5% max |
| Product form | Bulk liquid |
Note: Values are representative. Batch-specific figures are provided on the Certificate of Analysis (COA) supplied with each consignment.
Supply
Packaging, MOQ & supply
From trial quantities for process validation to repeat container loads on contract — packed, documented and dispatched to your plant in India or overseas.
Packaging
200 kg HDPE or lined mild-steel drums, blanketed with nitrogen and protected from light; smaller drums for trial quantities on request.
Minimum order quantity
Flexible — single drums for process validation through to full-container loads.
Shelf life
Use within the stated retest period; store sealed, cool, dry, under nitrogen and protected from light and moisture.
Dispatch
Pan-India dispatch and worldwide export with complete dangerous-goods documentation and logistics support.
Why buy from us
Why choose Chelora as your DIPITPB supplier?
As an established Diisopropyl Isothiocyanato Phenoxybenzene supplier and distributor based in India and shipping worldwide, we work with a wide network of trusted manufacturers to combine consistent quality with dependable service. More about Chelora Agrochem.
High purity, every batch
97% min assay, sourced only from quality-approved manufacturers we have worked with and audited.
Full documentation
COA, MSDS and TDS travel with every order, so your QA and EHS teams are never chasing paperwork.
Reliable bulk supply, flexible MOQ
Single packs for process trials through to repeat container loads on schedule.
Worldwide supply
Export-grade packing, dangerous-goods documentation and on-time dispatch to plants across Asia, the Middle East, Europe, Africa and the Americas.
Technical & safe-handling support
Guidance on storage, inerting, moisture control and process fit from a team that knows isothiocyanate chemistry.
One point of contact
Source DIPITPB alongside your other intermediates — one enquiry, one team, one invoice.
Ordering
How to order Diisopropyl Isothiocyanato Phenoxybenzene from Chelora
Ordering is simple and fast — most enquiries are answered with pricing and availability within 24 hours.
- 1
Send your enquiry
Tell us the grade, quantity and application you are buying for.
- 2
Receive a quotation
We send pricing along with the COA and MSDS for your review.
- 3
Request a sample
Test suitability for your process before you commit to a bulk order.
- 4
Confirm the order
Lock in quantity, packaging and delivery preference.
- 5
Dispatch & tracking
We dispatch with full documentation and keep you updated until delivery.
Documentation
Diisopropyl Isothiocyanato Phenoxybenzene MSDS & COA
A summary of key safety information and a representative Certificate of Analysis. The complete 16-section Safety Data Sheet and the actual batch COA are supplied with each shipment — and both are sent with your quotation when you ask for a quote.
Safety data summary (MSDS)
| Section | Details |
|---|---|
| Hazard classification | Acute toxicity cat. 4 (oral / inhalation); serious eye damage cat. 1; skin irritation cat. 2; skin sensitisation cat. 1; STOT SE cat. 3 (respiratory irritation); aquatic chronic cat. 2 |
| Signal word | Danger |
| First aid — inhalation | Move to fresh air; keep at rest; get immediate medical attention |
| First aid — skin | Remove contaminated clothing at once; wash with plenty of soap & water; get medical attention |
| First aid — eyes | Rinse cautiously with water for several minutes; get immediate medical attention |
| Handling | Closed transfer or local exhaust; full PPE; strong sensitiser; exclude moisture |
| Storage | Cool, dry, sealed, nitrogen-blanketed and dark; away from amines, alcohols, bases & oxidisers |
| Environment | Harmful to aquatic life with long-lasting effects; prevent release to drains / waterways |
| Transport | Confirmed on the supplier SDS and shipping documents |
Certificate of Analysis (representative)
| Test parameter | Specification | Method |
|---|---|---|
| Assay (purity) | 97% min | HPLC |
| Appearance | Light yellow viscous liquid | Visual |
| Residual aniline precursor | 0.5% max | HPLC |
| Moisture | 0.1% max | Karl Fischer |
| Colour (Gardner) | 5 max | Comparator |
| Non-volatile residue | 0.5% max | Gravimetric |
The actual batch COA is supplied with each shipment.
FAQ
Frequently asked questions
Common questions from buyers specifying DIPITPB for diafenthiuron manufacture and thiourea chemistry.
What is Diisopropyl Isothiocyanato Phenoxybenzene used for?
DIPITPB is used above all as the final intermediate in diafenthiuron manufacture, where tert-butylamine adds across the isothiocyanate group to give the thiourea insecticide and acaricide. It is also used more generally to make substituted thioureas, thiocarbamates and dithiocarbamates, and the heterocycles built from them.
What is the CAS number of DIPITPB?
The CAS number is 80058-93-1 and the molecular formula is C19H21NOS, with a molecular weight of 311.44 g/mol. It is also listed as 2,6-diisopropyl-4-phenoxyphenyl isothiocyanate, 1,3-diisopropyl-2-isothiocyanato-5-phenoxybenzene, or DIPPI.
How is DIPITPB made?
It is made from 2,6-diisopropyl-4-phenoxyaniline by thiophosgenation — reaction with thiophosgene or a thiophosgene equivalent in the presence of a base — which converts the primary aromatic amine into the isothiocyanate. The product is then purified by distillation under high vacuum.
How is diafenthiuron made from DIPITPB?
In a single step. tert-Butylamine adds across the N=C=S group to give 1-tert-butyl-3-(2,6-diisopropyl-4-phenoxyphenyl)thiourea, which is diafenthiuron. Because the step is clean and high-yielding, the purity of the isothiocyanate largely determines the purity of the finished active.
Is Diisopropyl Isothiocyanato Phenoxybenzene hazardous?
Yes. It is harmful if swallowed or inhaled, causes serious eye damage and skin irritation, may cause an allergic skin reaction, and its vapour is a lachrymator. It is also harmful to aquatic life with long-lasting effects. Use closed transfer or local exhaust ventilation and full PPE; we supply a full MSDS with every order.
How should DIPITPB be stored?
In sealed drums under a nitrogen blanket in a cool, dry, well-ventilated store, protected from light and moisture and kept well away from amines, ammonia, alcohols, strong bases and oxidisers. Moisture hydrolyses the isothiocyanate, so containers should be resealed and re-inerted promptly after use.
Do you provide COA and MSDS for DIPITPB?
Yes, we provide a batch-specific COA and MSDS with every order, plus technical support on request.
Do you supply and export Diisopropyl Isothiocyanato Phenoxybenzene?
Yes, we supply DIPITPB across India and export internationally with complete documentation, sourced from reliable manufacturers.
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Need a reliable DIPITPB supplier?
Looking for a dependable Diisopropyl Isothiocyanato Phenoxybenzene (DIPITPB) supplier and distributor — in India or anywhere we export to? Tell us the grade and quantity you need — our team responds with competitive bulk pricing, samples and complete documentation (COA, MSDS, TDS) within 24 hours.
Or email source@cheloraagrochem.com