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Methyl Sulfonyl Methane，MSM

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Origin: China

Cas No: 67-71-0

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 50 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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Products Specification
Product Description

Feature: The raw material is synthesized from high purity dimethyl sulfoxide(99.9%),Obtained by crystallization and re-crystallization in purified water after separation and drying, the advantage is high purity, No black spots, No pungent odor, The color is more white and natural, good liquidity ! Low microorganisms and heavy metals , Does not contain any nitrate and nitrite, conform USP Standard, It is widely used in joint health products、dietary supplements and Health products for pets in abroad.

Purity %	>99.90
DMSO Content %	≤0.01
Appearance	White Crystalline
Odor	Odorless
Melting Point@760mmHg	108.5℃-110.5℃
Bulk Densityg/ml	>0.65
Water Content%	<0.10
Total Heavy Metals： ppm	<3
As ppm	<0.1
Cd ppm	<0.1
Hg ppm	<0.1
Pbppm	<0.1
Residue on Ignition%	<0.20
Coliform(CFU/g)	Negative
E.Coli(CFU/g)	Negative
Yeast/Mold(CFU/g)	<10
Salmonella	Negative
Standard Aerobic Plate Count(CFU/g)	<10
Total Aerobic Bacterial Count(CFU/g)	<1000

Property

CAS No.: 67-71-0 Formula: C2H6O2S Molecular Weight: 94.13280

Description

Methylsulfonylmethane (MSM) is an organosulfur compound with the formula (CH3)2SO2. It is also known by several other names including DMSO2, methyl sulfone, and dimethyl sulfone. This colorless solid features the sulfonyl functional group and is considered relatively inert chemically. It occurs naturally in some primitive plants, is present in small amounts in many foods and beverages, and is marketed as a dietary supplement. It is also commonly found in the atmosphere above marine areas, where it is used as a carbon source by the airborne bacteria Afipia, and is found distinctively in human melanoma cells.

Basic Info

Chemical Name	sulfonyldimethane
Synonyms	DMSO2; methylsulphonylmethane; Sulfone,dimethyl; dimethyl sulfone; Methyl sulfone; METHYLSULPHONE; Methylsulfone; MSM; DIMETHYL SULPHONE; Dimethylsulfon; Methane, sulfonylbis-;
CAS No.	67-71-0
Molecular Formula	C2H6O2S
Molecular Weight	94.13280
PSA	42.52000
LogP	0.74160

Properties

Appearance & Physical State	white crystalline flakes
Density	1.16 g/cm3
Boiling Point	238ºC
Melting Point	107-111ºC
Flash Point	143ºC
Refractive Index	1.4226 (20ºC)
Water Solubility	150 g/L (20 ºC)
Stability	Stable. Combustible. Incompatible with strong oxidizing agents.
Storage Condition	Keep tightly closed. Cylinder temperature should not exceed 125 F (52ºC).

Safety Info

RTECS	PB2785000
Safety Statements	S24/25
HS Code	29309070
WGK Germany	1

Synthesis Route

ethyl phenyl diazomethane→sulfonyldimethane+Ethyl benzoate
diimino(dimethyl)-λ<sup>6</sup>-sulfane→imino-dimethyl-oxo-λ<sup>6</sup>-sulfane+sulfonyldimethane
N,N-dimethyl-1,1-dioxo-3-phenylthietan-3-amine→cumene+methanethiol

GC Analysis

Column type	Active phase	Temperature (°C)	Retention Index (I)	Temperature Control Method
Capillary	PEG-20M	160.	1900.	isothermal
Capillary	PEG-20M	180.	1913.	isothermal
Capillary	PEG-20M	130.	1881.4	isothermal
Capillary	DB-5MS	-	919.	temperature ramp
Capillary	SPB-5	-	915.	temperature ramp