DL-METHIONINE SULFOXIDE Property

Melting point:

~240 °C (dec.)

alpha 

[α]D20 -1～+1゜ (c=2.5, H2O)

Density 

1.183 (estimate)

refractive index 

1.5216 (estimate)

form 

solid

CAS DataBase Reference

454-41-1(CAS DataBase Reference)

Safety

WGK Germany 

3

RTECS 

ES7120000

HS Code 

29304090

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P321Specific treatment (see … on this label).

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P362Take off contaminated clothing and wash before reuse.

DL-METHIONINE SULFOXIDE Chemical Properties,Usage,Production

Chemical Properties

white to slightly off-white crystalline powder

Definition

ChEBI: Methionine S-oxide is the S-oxide derivative of methionine. It is a biomarker of oxidative stress. It has a role as a biomarker and a human metabolite.

Purification Methods

Likely impurities are dl-methionine sulfone and dl-methionine. Crystallise the sulfoxide by dissolving it in hot H2O and adding excess EtOH. [Lepp & Dunn Biochemical Preparations 4 80 1955, Micheel & Schmitz Chem Ber 72 518 1939, Beilstein 4 III 1650, 4 IV 3192.]