Acibenzolar-S-methyl

Also known as: Actigard, BTH, Bion, CGA 245704, Bion (pesticide), 1,2,3-Benzothiadiazole-7-carbothioic acid S-methyl ester, S-methyl 1,2,3-benzothiadiazole-7-carbothioate, S-methyl benzo[1,2,3]thiadiazole-7-carbothioate, 7-(methylthiocarbonyl)-benzo-1,2,3-thiadiazole, Unix Bion, EINECS 420-050-0, acibenzolar-S-methyl

Acibenzolar-S-methyl (CAS 135158-54-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H6N2OS2 and a molecular weight of 210.28 g/mol. Key properties include a melting point of 132.9ºC, a boiling point of 331.8ºC at 760 mmHg, a density of 1.45 g/cm3 and a flash point of 154.5ºC. 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.: 135158-54-2
Jingsj CID: J-10018-0
Molecular Formula: C₈H₆N₂OS₂
Molecular Weight: 210.28 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	132.9ºC
Boiling Point	331.8ºC at 760 mmHg
Density	1.45 g/cm3
Flash Point	154.5ºC
Exact Mass	225.96900
PSA	111.41000
LogP	2.72980
Refractive Index	1.5690 (estimate)

GHS Safety & Compliance

Irritant / Environmental HazardSignal word: Warning

H315 — Causes skin irritation
H317 — May cause an allergic skin reaction
H319 — Causes serious eye irritation
H335 — May cause respiratory irritation
H410 — Very toxic to aquatic life with long lasting effects

Activity & Biological Data

Target	Bacterial, fungal[1][2].
Additional Information	[1]. Cole D L. The efficacy of acibenzolar-S-methyl, an inducer of systemic acquired resistance, against bacterial and fungal diseases of tobacco. Crop Prot. 1999, 18(4): 267-273. [2]. Marolleau B, et al. When a Plant Resistance Inducer Leaves the Lab for the Field: Integrating ASM into Routine Apple Protection Practices. Front Plant Sci. 2017 Dec 4;8:1938.

Frequently Asked Questions

What is the CAS number of Acibenzolar-S-methyl?

The CAS number of Acibenzolar-S-methyl is 135158-54-2.

What are the molecular formula and molecular weight of Acibenzolar-S-methyl?

Acibenzolar-S-methyl has molecular formula C8H6N2OS2 and molecular weight 210.28 g/mol.

Is Acibenzolar-S-methyl hazardous?

Acibenzolar-S-methyl has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H317 — May cause an allergic skin reaction; H319 — Causes serious eye irritation.

What are the upstream and downstream products of Acibenzolar-S-methyl?

For Acibenzolar-S-methyl, Upstream Products: Acibenzolar acid, Methyl 2-chloro-3-nitrobenzoate, 2,3-Dichloronitrobenzene.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Acibenzolar-S-methyl (CAS 135158-54-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-10018-0 (accessed 2026-11-06).

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