N-Methylcaprolactam
Also known as: 1-Methylazepan-2-one, Hexahydro-1-methyl-2H-azepin-2-one, 1-Methyl-2-azepanone, N-Methyl-ε-caprolactam, 1-Methylcaprolactam, 1-methyl-azacycloheptan-2-one, MFCD00003263, EINECS 219-874-1
N-Methylcaprolactam (CAS 2556-73-2) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C7H13NO and a molecular weight of 127.184 g/mol. Key properties include a boiling point of 247.8±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 103.3±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H332 — Harmful if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2556-73-2
- Jingsj CID
- J-6053-7
- Molecular Formula
- C7H13NO
- Molecular Weight
- 127.184 g/mol
- Category
- Organic Bases
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 247.8±0.0 °C at 760 mmHg |
|---|---|
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 103.3±0.0 °C |
| Exact Mass | 127.099716 |
| PSA | 20.31000 |
| LogP | 0.73 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.460 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H312 — Harmful in contact with skin
- H332 — Harmful if inhaled
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2933790090 |
|---|---|
| Summary | 2933790090. other lactams. VAT:17.0%. Tax rebate rate:9.0%. . MFN tariff:9.0%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of N-Methylcaprolactam?
The CAS number of N-Methylcaprolactam is 2556-73-2.
What are the molecular formula and molecular weight of N-Methylcaprolactam?
N-Methylcaprolactam has molecular formula C7H13NO and molecular weight 127.184 g/mol.
Is N-Methylcaprolactam hazardous?
N-Methylcaprolactam has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H332 — Harmful if inhaled.
What are the upstream and downstream products of N-Methylcaprolactam?
For N-Methylcaprolactam, Upstream Products: Adipic acid, Caprolactam, 1,1-Diethoxycyclohexane; Downstream Products: Meptazinol, Methyl 5-hexenoate, methyl 6-hydroxyhexanoate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "N-Methylcaprolactam (CAS 2556-73-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-6053-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.