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1-Methyl-1-phenylhydrazine

Also known as: 1-Methylphenylhydrazine, N-Methyl-N-phenylhydrazine, N-Phenyl-N-methylhydrazine, α-Methylphenylhydrazine, NSC 525518, Hydrazine, 1-methyl-1-phenyl-

1-Methyl-1-phenylhydrazine (CAS 618-40-6) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C7H10N2 and a molecular weight of 122.16800 g/mol. Key properties include a boiling point of 54-55 °C0.3 mm Hg(lit.), a density of 1.038 g/mL at 25 °C(lit.) and a flash point of 96.1 °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 Nov 2, 2026.

CAS No.
618-40-6
Jingsj CID
J-27049-5
Molecular Formula
C7H10N2
Molecular Weight
122.16800 g/mol
Category
Organic Bases
Last updated
11/2/2026
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Physicochemical Properties

Boiling Point54-55 °C0.3 mm Hg(lit.)
Density1.038 g/mL at 25 °C(lit.)
Flash Point96.1 °C
Exact Mass122.08400
PSA29.26000
LogP1.69680
Refractive Indexn20/D 1.583(lit.)

GHS Safety & Compliance

IrritantSignal word: Warning
  • 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

Frequently Asked Questions

What is the CAS number of 1-Methyl-1-phenylhydrazine?

The CAS number of 1-Methyl-1-phenylhydrazine is 618-40-6.

What are the molecular formula and molecular weight of 1-Methyl-1-phenylhydrazine?

1-Methyl-1-phenylhydrazine has molecular formula C7H10N2 and molecular weight 122.16800 g/mol.

Is 1-Methyl-1-phenylhydrazine hazardous?

1-Methyl-1-phenylhydrazine 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 1-Methyl-1-phenylhydrazine?

For 1-Methyl-1-phenylhydrazine, Upstream Products: N-Nitroso-N-methylaniline, Ethyl pyruvate, Ethyl 1-methyl-1H-indole-2-carboxylate; Downstream Products: Antipyrine, naphthalene-1,2-diamine, N-Methylaniline.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "1-Methyl-1-phenylhydrazine (CAS 618-40-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-27049-5 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.