What is Mandelic Acid CAS 611-72-3?

Mandelic Acid CAS 611-72-3 is an aromatic alpha-hydroxy acid with the formula C8H8O3 and molecular weight 152.15 g/mol. It is supplied as a white crystalline powder or flake and is used in cosmetic exfoliation and as a pharmaceutical intermediate.

Why is Mandelic Acid considered gentler than Glycolic Acid?

Its molecular weight is about twice that of glycolic acid, which slows and evens out skin penetration. This can reduce the risk of irritation and makes it a common choice for sensitive skin, darker skin tones or first-time AHA users.

What makes Mandelic Acid useful for acne-prone skin?

It has antibacterial properties in addition to exfoliating action, so it is often formulated in chemical peels, serums, cleansers and toners aimed at acne-prone or congested skin. The ingredient should be formulated at a pH and use level appropriate for the finished cosmetic product.

What are the main quality parameters?

Typical specifications are white crystalline powder or flake, titration assay at least 99%, melting point 118-121 C, low loss on drying, residue on ignition, heavy metals and arsenic. It is freely soluble in water, ethanol and ether.

How should Mandelic Acid CAS 611-72-3 be stored?

Store it sealed in a cool, dry, ventilated area away from heat, moisture and direct sunlight. Keep containers closed when not in use and avoid contact with incompatible oxidizing conditions during handling.

Mandelic Acid CAS 611-72-3

Mandelic Acid, CAS 611-72-3, is an aromatic alpha-hydroxy acid supplied for cosmetic exfoliation and as a pharmaceutical intermediate. Confirm the required grade and specification, then request a quotation with COA/TDS/SDS for bulk supply.

CAS: 611-72-3
Synonyms: DL-Mandelic Acid, 2-Hydroxy-2-phenylacetic acid, Alpha-hydroxyphenylacetic acid, Amygdalic acid, Phenylglycolic acid
Einecs: 210-277-1
Molecular Formula: C₈H₈O₃
Grade: Cosmetic Grade / Pharmaceutical Intermediate
Package: 25kg/Cardboard Drum or Fiber Drum with double plastic lining (or customized).

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Product Description

Mandelic Acid, CAS 611-72-3, is an aromatic alpha-hydroxy acid.

Synonyms: DL-Mandelic Acid; 2-Hydroxy-2-phenylacetic acid; Alpha-hydroxyphenylacetic acid; Amygdalic acid; Phenylglycolic acid.

CAS: 611-72-3.

It has the molecular formula C8H8O3 and molecular weight 152.15 g/mol.

It appears as a white crystalline powder or flake.

It has a titration assay of at least 99.0% and a melting point of about 118.0–121.0 °C.

It is freely soluble in water, ethanol and ether.

It is a gentler AHA than glycolic acid because its larger molecular weight slows skin penetration.

It has both water-solubility and partial lipid-solubility, working on the skin surface and within pores.

It has antibacterial properties and is used in acne cleansers, serums and toners.

It promotes cell turnover to smooth skin texture and fade dark spots, melasma and sun damage.

It is used at about 2–10% in leave-on products and higher levels in professional peels.

It is a pharmaceutical intermediate for cephalosporins, methenamine mandelate and antispasmodics.

It is used as an analytical reagent and a dye intermediate.

Confirm appearance, assay, melting point, loss on drying, residue on ignition, heavy metals, arsenic, turbidity, solubility and optical rotation.

Store sealed in a cool, dry, well-ventilated area away from heat, moisture, sunlight and strong oxidizing or reducing agents.

Confirm packaging with the requested quantity and destination requirements.

The page is an RFQ entry point and does not state stock, price, MOQ or fixed lead time.

For an RFQ, state the intended use, required grade and specification, quantity, packaging, destination and document needs.

FAQ - Technical & Supply Chain

Q:
What is Mandelic Acid CAS 611-72-3?

A: Mandelic Acid CAS 611-72-3 is an aromatic alpha-hydroxy acid with the formula C8H8O3 and molecular weight 152.15 g/mol. It is supplied as a white crystalline powder or flake and is used in cosmetic exfoliation and as a pharmaceutical intermediate.
Q:
Why is Mandelic Acid considered gentler than Glycolic Acid?

A: Its molecular weight is about twice that of glycolic acid, which slows and evens out skin penetration. This can reduce the risk of irritation and makes it a common choice for sensitive skin, darker skin tones or first-time AHA users.
Q:
What makes Mandelic Acid useful for acne-prone skin?

A: It has antibacterial properties in addition to exfoliating action, so it is often formulated in chemical peels, serums, cleansers and toners aimed at acne-prone or congested skin. The ingredient should be formulated at a pH and use level appropriate for the finished cosmetic product.
Q:
What are the main quality parameters?

A: Typical specifications are white crystalline powder or flake, titration assay at least 99%, melting point 118-121 C, low loss on drying, residue on ignition, heavy metals and arsenic. It is freely soluble in water, ethanol and ether.
Q:
How should Mandelic Acid CAS 611-72-3 be stored?

A: Store it sealed in a cool, dry, ventilated area away from heat, moisture and direct sunlight. Keep containers closed when not in use and avoid contact with incompatible oxidizing conditions during handling.

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