Sodium salicylate

CAS Number

54-21-7

EC Number

200-198-0

Industries: Pharma & Healthcare Personal Care & Cosmetics

What is Sodium salicylate?

Sodium salicylate (CAS 54-21-7) is the sodium salt of salicylic acid, used as a preservative, antioxidant, and UV-stabilizing agent. Also marketed as Salsonin and Alysine.

Where is Sodium salicylate used?

Pharmaceutical manufacturing: intermediate in the synthesis of active ingredients
Topical and oral formulations: stabilizer
Personal care: UV absorber in sunscreen and UV-protective products
Food-contact and preservation: antimicrobial and antioxidant agent extending shelf life in specific regulated contexts
It also appears in analytical and laboratory reagent applications.

Good to know: Consistent purity is a key sourcing requirement for technical uses.

Commercial specifications

Standard grades include USP, BP, and Ph. Eur.

Other Names (Synonyms)

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What are the physical properties of Sodium salicylate?

Melting Point 213 °C (decomp)

Boiling Point 237°

Density 0.100532 g/cm³ @ Temp: 20 °C

Flash Point 98.3°

Appearance white crystals

Color White

Odor wh. lustrous cryst. scales or amorphous powd., odorless or faint odor, saline taste

Form Crystals or Crystalline Powder

Water Solubility 1000 g/L (20 ºC)

Vapor Pressure <1 hPa ( 25 °C)

Refractive Index 1.435

pH 6.5 (100g/l, H2O, 20℃)

Log P 2.061 (est)

How is Sodium salicylate classified and handled safely? Learn More

Warning

GHS07· Irritant GHS08· Health Hazard

Hazard Statements

H302 Harmful if swallowed

H319 Causes serious eye irritation

H361 Suspected of damaging fertility or the unborn child

Precautionary Statements

P203 Obtain, consult and follow expert instructions for use.

P264 Wash … thoroughly after handling.

P270 Do not eat, drink or smoke when using this product.

P280 Wear protective gloves/protective clothing/eye protection/face protection.

Which trade and regulatory codes apply to Sodium salicylate?

HS Code 29182100

WGK (Germany) 1