(-)-O-Acetyl-D-mandelic acid

(-)-O-乙酰基-D-扁桃酸

Also known as: (R)-(-)-α-Acetoxyphenylacetic acid, (R)-(-)-alpha-Acetoxyphenylacetic acid, (R)-(-)-O-Acetylmandelic acid, (R)-α-Acetoxybenzeneacetic acid, (R)-2-Acetoxy-2-phenylacetic acid, (R)-alpha-Acetoxyphenylacetic acid, (-)-D-Mandelic acid acetate, (R)-(–)-α-Acetylmandelic acid, Benzeneacetic acid, α-(acetyloxy)-, (αR)-, MFCD00004249

(-)-O-Acetyl-D-mandelic acid (CAS 51019-43-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H10O4 and a molecular weight of 194.18 g/mol. It is also known as (R)-(-)-α-Acetoxyphenylacetic acid, (R)-(-)-alpha-Acetoxyphenylacetic acid and (R)-(-)-O-Acetylmandelic acid. Key properties include a melting point of 97-99ºC(lit.), a boiling point of 317.8±30.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 125.0±18.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
51019-43-3
Jingsj CID
J-39869-5
Molecular Formula
C10H10O4
Chinese Name
(-)-O-乙酰基-D-扁桃酸
Molecular Weight
194.18 g/mol
Category
Organic Acids
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point97-99ºC(lit.)
Boiling Point317.8±30.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point125.0±18.1 °C
Exact Mass194.057907
PSA74.60000
LogP1.78
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.541

Customs & Trade Information

HS Code2918990090
Summary2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of (-)-O-Acetyl-D-mandelic acid?

The CAS number of (-)-O-Acetyl-D-mandelic acid is 51019-43-3.

What are the molecular formula and molecular weight of (-)-O-Acetyl-D-mandelic acid?

(-)-O-Acetyl-D-mandelic acid has molecular formula C10H10O4 and molecular weight 194.18 g/mol.

What are the upstream and downstream products of (-)-O-Acetyl-D-mandelic acid?

For (-)-O-Acetyl-D-mandelic acid, Upstream Products: (R)-(-)-Mandelic acid, Acetyl chloride, Phenyl(2-thienyl)methanol; Downstream Products: (R)-2-Chloro-2-oxo-1-phenylethyl acetate.

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

Last updated:

How to cite: Jingsj. "(-)-O-Acetyl-D-mandelic acid (CAS 51019-43-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-39869-5 (accessed 2026-10-28).

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