Diclobutrazol

Also known as: (2RS,3RS)-1-(2,4-dichlorophenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pentan-3-ol, (R*,R*)-(±)-β-[(2,4-dichlorophenyl)methyl]-α-(1,1-dimethylethyl)-1H-1,2,4-triazole-1-ethanol, (αR,βR)-rel-β-[(2,4-dichlorophenyl)methyl]-α-(1,1-dimethylethyl)-1H-1,2,4-triazole-1-ethanol, 1-(2,4-dichlorophenyl)-4,4-dimethyl-2-(1,2,4-triazol-1-yl)pentan-3-ol, PP 296, Vigil, Vigilex

Diclobutrazol (CAS 75736-33-3) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C15H19Cl2N3O and a molecular weight of 328.23700 g/mol. Key properties include a melting point of 140 - 143ºC, a boiling point of 484.3ºC at 760 mmHg, a density of 1.28 g/cm3 and a flash point of >100ºC. It is classified under GHS with signal word Warning and hazard statements H319 — Causes serious eye irritation and H411 — Toxic to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.: 75736-33-3
Jingsj CID: J-39241-9
Molecular Formula: C₁₅H₁₉Cl₂N₃O
Molecular Weight: 328.23700 g/mol
Category: Alcohols
Last updated: 11/3/2026

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Physicochemical Properties

Melting Point	140 - 143ºC
Boiling Point	484.3ºC at 760 mmHg
Density	1.28 g/cm3
Flash Point	>100ºC
Exact Mass	327.09100
PSA	50.94000
LogP	3.77570
Storage Conditions	0-6°C

GHS Safety & Compliance

Irritant / Environmental HazardSignal word: Warning

H319 — Causes serious eye irritation
H411 — Toxic to aquatic life with long lasting effects

Activity & Biological Data

Additional Information	[1]. Bicchi C, et, al. Simultaneous determination of six triazolic pesticide residues in apple and pear pulps by liquid chromatography with ultraviolet diode array detection. J AOAC Int. Sep-Oct 2001;84(5):1543-50. [2]. Mercer EI, et, al. Effect of some sterol-biosynthesis-inhibiting fungicides on the biosynthesis of polyisoprenoid compounds in barley seedings. Steroids. Mar-May 1989;53(3-5):393-412. [3]. Lamb DC, et, al. Differential inhibition of human CYP3A4 and Candida albicans CYP51 with azole antifungal agents. Chem Biol Interact. 2000 Mar 15;125(3):165-75.

Additional Information

[1]. Bicchi C, et, al. Simultaneous determination of six triazolic pesticide residues in apple and pear pulps by liquid chromatography with ultraviolet diode array detection. J AOAC Int. Sep-Oct 2001;84(5):1543-50. [2]. Mercer EI, et, al. Effect of some sterol-biosynthesis-inhibiting fungicides on the biosynthesis of polyisoprenoid compounds in barley seedings. Steroids. Mar-May 1989;53(3-5):393-412. [3]. Lamb DC, et, al. Differential inhibition of human CYP3A4 and Candida albicans CYP51 with azole antifungal agents. Chem Biol Interact. 2000 Mar 15;125(3):165-75.

Frequently Asked Questions

What is the CAS number of Diclobutrazol?

The CAS number of Diclobutrazol is 75736-33-3.

What are the molecular formula and molecular weight of Diclobutrazol?

Diclobutrazol has molecular formula C15H19Cl2N3O and molecular weight 328.23700 g/mol.

Is Diclobutrazol hazardous?

Diclobutrazol has GHS signal word Warning and hazard statements H319 — Causes serious eye irritation; H411 — Toxic to aquatic life with long lasting effects.

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

Last updated: 11/3/2026

How to cite: Jingsj. "Diclobutrazol (CAS 75736-33-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-39241-9 (accessed 2026-11-06).

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