1,1,3,3-Tetramethylbutyl isocyanate
叔辛基异氰酸酯
Also known as: tert-Octyl isocyanate, 2,4,4-trimethyl-2-pentyl isocyanate, 2-isocyanato-2,4,4-trimethylpentane, t-octyl isocyanate, MFCD00209615
1,1,3,3-Tetramethylbutyl isocyanate (CAS 1611-57-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H17NO and a molecular weight of 155.23700 g/mol. It is also known as tert-Octyl isocyanate, 2,4,4-trimethyl-2-pentyl isocyanate and 2-isocyanato-2,4,4-trimethylpentane. Key properties include a boiling point of 170ºC, a density of 0.859 and a flash point of 62.6ºC. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour, H302 — Harmful if swallowed and H312 — Harmful in contact with skin. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1611-57-0
- Jingsj CID
- J-27560-0
- Molecular Formula
- C9H17NO
- Chinese Name
- 叔辛基异氰酸酯
- Molecular Weight
- 155.23700 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 170ºC |
|---|---|
| Density | 0.859 |
| Flash Point | 62.6ºC |
| Exact Mass | 155.13100 |
| PSA | 29.43000 |
| LogP | 2.53700 |
| Refractive Index | 1.426 |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- H302 — Harmful if swallowed
- H312 — Harmful in contact with skin
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H332 — Harmful if inhaled
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2929109000 |
|---|---|
| Summary | 2929109000. other isocyanates. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 1,1,3,3-Tetramethylbutyl isocyanate?
The CAS number of 1,1,3,3-Tetramethylbutyl isocyanate is 1611-57-0.
What are the molecular formula and molecular weight of 1,1,3,3-Tetramethylbutyl isocyanate?
1,1,3,3-Tetramethylbutyl isocyanate has molecular formula C9H17NO and molecular weight 155.23700 g/mol.
Is 1,1,3,3-Tetramethylbutyl isocyanate hazardous?
1,1,3,3-Tetramethylbutyl isocyanate has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour; H302 — Harmful if swallowed; H312 — Harmful in contact with skin.
What are the upstream and downstream products of 1,1,3,3-Tetramethylbutyl isocyanate?
For 1,1,3,3-Tetramethylbutyl isocyanate, Upstream Products: tert-Octylamine, Carbon dioxide, Di-tert-butyl dicarbonate.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,1,3,3-Tetramethylbutyl isocyanate (CAS 1611-57-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-27560-0 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.