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Sodium dodecyl sulfate CAS#151-21-3

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Chemical Name：Sodium dodecyl sulfate

CAS No.:151-21-3

Molecular Formula：C12H25NaO4S

Molecular weight:288.38

Sample: Available

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Product Details

Products Description of Sodium dodecyl sulfate CAS#151-21-3

Sodium dodecyl sulfate (SDS), with the chemical formula C12H25NaO4S, is a potent anionic surfactant that is soluble in water and widely used for its exceptional emulsifying, foaming, and wetting properties. It is a white crystalline powder that plays a critical role in the formulation of detergents, cleaners, and personal care products, and is particularly instrumental in protein electrophoresis as a denaturing agent. SDS is characterized by a molecular weight of approximately 288.4 g/mol, a high solubility in water, a critical micelle concentration around 8 mM, and a melting point above 200°C. It should be stored in tightly sealed containers, away from light and moisture, ideally at temperatures between 2-8°C, and handled with appropriate protective measures due to its potential for irritation. 产品图 (9).jpg

Sodium dodecyl sulfate Chemical Properties

Melting point	204-207 °C (lit.)
density	1.03 g/mL at 20 °C
FEMA	4437 \| SODIUM LAURYL SULFATE
Fp	>100°C
storage temp.	2-8°C
solubility	H2O: 0.1 M, clear to nearly clear, colorless to slightly yellow
form	Powder or Crystals
color	White to pale yellow
PH	6-9 (10g/l, H2O, 20℃)
Odor	Slight fatty odour
PH Range	7.2
Water Solubility	ca. 150 g/L (20 ºC)
λmax	λ: 260 nm Amax: 0.3 λ: 280 nm Amax: 0.2
Merck	14,8636
BRN	3599286
InChIKey	DBMJMQXJHONAFJ-UHFFFAOYSA-M
LogP	1.600
CAS DataBase Reference	151-21-3(CAS DataBase Reference)
EPA Substance Registry System	Sodium lauryl sulfate (151-21-3)

Safety Information

Hazard Codes	F,Xn,Xi
Risk Statements	36/37/38-36/38-22-11-21/22-42-41-20/21/22-37/38
Safety Statements	26-36/37-36/37/39-36-22-39
RIDADR	UN 2926 4.1/PG 2
WGK Germany	2
RTECS	WT1050000
F	3
TSCA	Yes
HazardClass	4.1
PackingGroup	III
HS Code	29209010
Hazardous Substances Data	151-21-3(Hazardous Substances Data)
Toxicity	LD50 orally in rats: 1288 mg/kg (Walker)