3,3'-Dimethyldiphenyl methane-4,4'-diisocyanate structure

3,3'-Dimethyldiphenyl methane-4,4'-diisocyanate

TL;DR: 3,3'-Dimethyldiphenyl methane-4,4'-diisocyanate (CAS 139-25-3) is a chemical compound with molecular formula C17H14N2O2 and molecular weight 278.11 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

1-isocyanato-4-[(4-isocyanato-3-methylphenyl)methyl]-2-methylbenzene

Also Known As: Nacconate 310, 3,4'-diisocyanate, 4,4'-Diisocyanato-3,3'-dimethyldiphenylmethane, 4,3'-dimethyldiphenylmethane, 5,5'-Methylenebis(2-isocyanatotoluene)

CAS: 139-25-3
Molecular Formula C17H14N2O2
Molecular Weight 278.11 g/mol
LogP 6.2
Topological Polar Surface Area 58.9 Ų
Hydrogen Bond Donors 0
Hydrogen Bond Acceptors 4
Rotatable Bonds 4
Exact Mass 278.10553
Heavy Atoms 21
Complexity 398.0

Chemical Identifiers

CAS Number 139-25-3
SMILES CC1=C(C=CC(=C1)CC2=CC(=C(C=C2)N=C=O)C)N=C=O
InChIKey DTZHXCBUWSTOPO-UHFFFAOYSA-N

Patent-Derived Application Labels

Derived from 20 IPC patent classification(s) across the SureChEMBL global patent database.

Agrochemicals (8 patents) Analytical Reagents (23 patents) Biotechnology (45 patents) Catalysts (43 patents) Coatings & Adhesives (225 patents) +15 more

Product Overview

3,3'-Dimethyldiphenyl methane-4,4'-diisocyanate (CAS 139-25-3), with molecular formula C17H14N2O2 and molecular weight 278.11 g/mol. IUPAC: 1-isocyanato-4-[(4-isocyanato-3-methylphenyl)methyl]-2-methylbenzene.

🧪
Safety Data Sheet (MSDS / SDS) View the Laboratory Chemical Safety Summary (LCSS) on PubChem — includes GHS classifications, hazard statements, first aid measures, and handling precautions.
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Chemical Property Profile of 3,3'-Dimethyldiphenyl methane-4,4'-diisocyanate

XLogP
6.2
TPSA (Topological Polar Surface Area)
58.9
Hydrogen Bond Donors
0
Hydrogen Bond Acceptors
4
Rotatable Bonds
4
Heavy Atoms
21
Complexity
398.0
Exact Mass
278.10553
Monoisotopic Mass
278.10553
Data Source: Chemical property values are referenced from PubChem, the world's largest open chemistry database maintained by the National Center for Biotechnology Information (NCBI), U.S. National Library of Medicine.

Property Insights of 3,3'-Dimethyldiphenyl methane-4,4'-diisocyanate

The XLogP value of 6.2 indicates that 3,3'-Dimethyldiphenyl methane-4,4'-diisocyanate is lipophilic (fat-soluble), which may influence its absorption, distribution, and formulation strategy. With a topological polar surface area (TPSA) of 58.9 Ų, 3,3'-Dimethyldiphenyl methane-4,4'-diisocyanate exhibits relatively low polarity, potentially indicating favorable cell membrane permeability. Following Lipinski's Rule of Five, 3,3'-Dimethyldiphenyl methane-4,4'-diisocyanate has 0 hydrogen bond donor(s) and 4 hydrogen bond acceptor(s), which may warrant consideration for formulation optimization.

Frequently Asked Questions

What is the typical lead time for this product?
Lead time typically ranges from 3-7 business days for in-stock items. For larger quantities or custom orders, please contact us for specific lead times.
Can you provide samples for testing?
Yes, we offer sample quantities for quality testing. Please submit an inquiry with your requirements and we will arrange samples accordingly.
What documentation do you provide with the product?
We provide COA (Certificate of Analysis), MSDS (Material Safety Data Sheet), and technical data sheets with each shipment.
Do you ship internationally?
Yes, we ship to most countries worldwide. Shipping costs and delivery times vary by location. Please contact us for specific shipping information.

Frequently Asked Questions

What is the CAS number of 3,3'-Dimethyldiphenyl methane-4,4'-diisocyanate?

The CAS number of 3,3'-Dimethyldiphenyl methane-4,4'-diisocyanate is 139-25-3.

What is the molecular formula of 3,3'-Dimethyldiphenyl methane-4,4'-diisocyanate?

The molecular formula of 3,3'-Dimethyldiphenyl methane-4,4'-diisocyanate is C17H14N2O2.

What is the molecular weight of 3,3'-Dimethyldiphenyl methane-4,4'-diisocyanate?

The molecular weight of 3,3'-Dimethyldiphenyl methane-4,4'-diisocyanate is 278.11 g/mol.

Where can I buy 3,3'-Dimethyldiphenyl methane-4,4'-diisocyanate?

You can request a quote for 3,3'-Dimethyldiphenyl methane-4,4'-diisocyanate directly from KEHONG BIO. Contact us or email info@kehongbio.com for pricing and availability.

Does KEHONG BIO offer custom synthesis for 3,3'-Dimethyldiphenyl methane-4,4'-diisocyanate?

Yes, KEHONG BIO provides custom synthesis services for 3,3'-Dimethyldiphenyl methane-4,4'-diisocyanate and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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