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(S)-1,4-Benzodioxane-2-carboxylic acid

Also known as: (S)-2,3-Dihydro-1,4-benzodioxin-2-carboxylic acid, (S)-2,3-Dihydrobenzo[1,4]dioxine-2-carboxylic acid, Afalanine [INN], MFCD00239408

(S)-1,4-Benzodioxane-2-carboxylic acid (CAS 70918-54-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H8O4 and a molecular weight of 180.157 g/mol. Key properties include a melting point of 96-99ºC, a boiling point of 347.2±41.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 145.4±21.1 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
70918-54-6
Jingsj CID
J-23215-5
Molecular Formula
C9H8O4
Molecular Weight
180.157 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point96-99ºC
Boiling Point347.2±41.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point145.4±21.1 °C
Exact Mass180.042252
PSA55.76000
LogP1.25
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.575

GHS Safety & Compliance

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

Customs & Trade Information

HS Code2932999099
Summary2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of (S)-1,4-Benzodioxane-2-carboxylic acid?

The CAS number of (S)-1,4-Benzodioxane-2-carboxylic acid is 70918-54-6.

What are the molecular formula and molecular weight of (S)-1,4-Benzodioxane-2-carboxylic acid?

(S)-1,4-Benzodioxane-2-carboxylic acid has molecular formula C9H8O4 and molecular weight 180.157 g/mol.

Is (S)-1,4-Benzodioxane-2-carboxylic acid hazardous?

(S)-1,4-Benzodioxane-2-carboxylic acid has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of (S)-1,4-Benzodioxane-2-carboxylic acid?

For (S)-1,4-Benzodioxane-2-carboxylic acid, Downstream Products: (R)-2-(Hydroxymethyl)-1,4-benzodioxane, (S)-1,4-benzodioxan-2-carboxypiperazine.

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

Last updated:

How to cite: Jingsj. "(S)-1,4-Benzodioxane-2-carboxylic acid (CAS 70918-54-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-23215-5 (accessed 2026-11-09).

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