N-Methyl-d3-N-nitroso-p-toluenesulfonamide

N-甲基-d3-N-亚硝基对甲苯磺酰胺

Also known as: Diazald-N-methyl-d3, Diazald® N-methyl-d3, N-Methyl-N-nitrosotoluene-4-sulfonamide-d3, Diazald-d3, N-Methyl-d3-N-nitroso-p-toluenesulfonamide, 4-Methyl-N-(methyl-d3)-N-nitrosobenzenesulfonamide, p-Toluenesulfonyl-N-(methyl-d3)-N-nitrosamide, Diazomethane-d2 precursor

N-Methyl-d3-N-nitroso-p-toluenesulfonamide (CAS 42366-72-3) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C8H7D3N2O3S and a molecular weight of 217.260 g/mol. It is also known as Diazald-N-methyl-d3, Diazald® N-methyl-d3 and N-Methyl-N-nitrosotoluene-4-sulfonamide-d3. Key properties include a melting point of 60-63ºC, a boiling point of 320.5±35.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 147.6±25.9 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H317 — May cause an allergic skin reaction and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
42366-72-3
Jingsj CID
J-10843-6
Molecular Formula
C8H7D3N2O3S
Chinese Name
N-甲基-d3-N-亚硝基对甲苯磺酰胺
Molecular Weight
217.260 g/mol
Category
Solvents
Last updated
8/21/2026

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Physicochemical Properties

Melting Point60-63ºC
Boiling Point320.5±35.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point147.6±25.9 °C
Exact Mass217.060043
PSA75.19000
LogP0.58
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.573

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H317 — May cause an allergic skin reaction
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Activity & Biological Data

Additional Information[1]. Russak EM, et al. Impact of Deuterium Substitution on the Pharmacokinetics of Pharmaceuticals. Ann Pharmacother. 2019 Feb;53(2):211-216.

Frequently Asked Questions

What is the CAS number of N-Methyl-d3-N-nitroso-p-toluenesulfonamide?

The CAS number of N-Methyl-d3-N-nitroso-p-toluenesulfonamide is 42366-72-3.

What are the molecular formula and molecular weight of N-Methyl-d3-N-nitroso-p-toluenesulfonamide?

N-Methyl-d3-N-nitroso-p-toluenesulfonamide has molecular formula C8H7D3N2O3S and molecular weight 217.260 g/mol.

Is N-Methyl-d3-N-nitroso-p-toluenesulfonamide hazardous?

N-Methyl-d3-N-nitroso-p-toluenesulfonamide has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H317 — May cause an allergic skin reaction; H319 — Causes serious eye irritation.

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

Last updated:

How to cite: Jingsj. "N-Methyl-d3-N-nitroso-p-toluenesulfonamide (CAS 42366-72-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-10843-6 (accessed 2026-10-28).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.