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1,3-Phenylene diisocyanate

CAS 123-61-5C6H4(NCO)2Polymer Science

1,3-Phenylene diisocyanate (CAS 123-61-5), molecular formula C6H4(NCO)2, is a high-purity chemical supplied by Tech Serve Solutions for polymer science applications, to pharmacopoeia specification (USP, BP, EP). Every batch is tested and ships with a Certificate of Analysis; MSDS and technical data sheets are available on request. Tech Serve Solutions has supplied laboratory reagents, fine chemicals and pharmaceutical intermediates worldwide since 1998.

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1,3-Phenylene diisocyanate
Isocyanate MonomersMaterials ScienceMonomersPolymer Science
01 /Properties
Molecular weight160.13
Linear formulaC6H4(NCO)2
Assay95%
Boiling point121 °C/25 mmHg(lit.)
Storage temperature2-8°C
Melting point49-51 °C(lit.)
02 /Safety & handling
Harmful / irritant
Harmful / irritant
Health hazard
Health hazard
Danger

Hazard statements

  • H302Harmful if swallowed
  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H334May cause allergy or asthma symptoms if inhaled
  • H335May cause respiratory irritation

Precautionary statements

  • P261Avoid breathing dust, fume, gas or vapours
  • P280Wear protective gloves, clothing and eye/face protection
  • P305IF IN EYES
  • P342
Protective equipmentEyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
Flash point113 °C / 235.4 °F
Transport (UN / ADR)UN 3335
Water hazard class (WGK, DE)3
Hazard codes (EU)Xn
Risk statements (R)20/21/22-36/37/38-42
Safety statements (S)22-26-36/37

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

03 /Identifiers & registry
CAS number
123-61-5
MDL number
MFCD00002018
PubChem substance
24858659
04 /Quality & supply

Documentation

Supplied to USP, BP and EP standards. Every batch ships with a Certificate of Analysis (assay, identity, purity); MSDS and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

05 /Frequently asked questions

What is 1,3-Phenylene diisocyanate?

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1,3-Phenylene diisocyanate (CAS 123-61-5), molecular formula C6H4(NCO)2, is a high-purity chemical supplied by Tech Serve Solutions for polymer science applications, to USP, BP and EP standards.

What grades of 1,3-Phenylene diisocyanate does Tech Serve Solutions supply?

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Tech Serve Solutions supplies 1,3-Phenylene diisocyanate in USP, BP, EP and reagent/AR grades. Custom specifications for nutraceutical or specialty pharmaceutical applications are available — contact our technical sales team.

What is the CAS number and molecular formula of 1,3-Phenylene diisocyanate?

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1,3-Phenylene diisocyanate has CAS number 123-61-5 and molecular formula C6H4(NCO)2. Full specifications appear in the table above and in the Certificate of Analysis.

What is the typical minimum order quantity and lead time for 1,3-Phenylene diisocyanate?

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Sample quantities are available for technical evaluation; bulk MOQ depends on grade and packaging. In-stock material typically ships in 7–10 working days; custom-spec orders take 3–4 weeks. Tech Serve Solutions ships worldwide with full export documentation.

Do you provide a Certificate of Analysis (CoA) with each shipment?

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Yes. Every batch of 1,3-Phenylene diisocyanate ships with a Certificate of Analysis covering assay, identity and purity tests, plus pharmacopoeia conformance where applicable. MSDS and TDS documents are available on request before order placement.

How should 1,3-Phenylene diisocyanate be stored?

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Store 1,3-Phenylene diisocyanate in its original sealed container in a cool, dry place away from direct sunlight and incompatible materials, in line with the storage guidance on the Safety Data Sheet. Reseal between dispensings.

What is 1,3-Phenylene diisocyanate used for?

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1,3-Phenylene diisocyanate is used in polymer science applications across pharmaceutical, research and industrial settings. Our technical team can advise on suitability for your specific process.

How do I request a quote for 1,3-Phenylene diisocyanate?

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Request a quote with your required grade, quantity and destination via https://www.techservesolutions.in/contact or email info@techservesolutions.in. We respond with specifications, a Certificate of Analysis and pricing.

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