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590-47-6

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Identification

Name
Betaine monohydrate
CAS
590-47-6
Synonyms
BETAINE HYDRATE
BETAINE MONOHYDRATE
BET H2O
(CARBOXYMETHYL)TRIMETHYLAMMONIUM HYDROXIDE
betaine free base monohydrate
BETAINE INNER SALT MONOHYDRATE, = 99%
BetaineMonohydrate,>98%
(Carboxymethyl)trimethylammoniumhydroxid
(Carboxymethyl)trimethylammonium hydroxide monohydrate
(Carboxymethyl)trimethylammonium hydroxide, (Carboxymethyl)trimethylammonium
Betaine monohydrate inner salt
Carboxymethyl-trimethylazanium hydroxide
Betaine monohydrate, 99%, for analysis
Betaine monohydrate, for analysis
EINECS(EC#)
203-490-6
Molecular Formula
C5H13NO3
MDL Number
MFCD00150010
Molecular Weight
135.16
MOL File
590-47-6.mol

Chemical Properties

Appearance
WHITE CRYSTALS OR CRYSTALLINE POWDER
storage temp. 
2-8°C

solubility 
H2O: 0.1 g/mL, clear, colorless

Water Solubility 
SOLUBLE. >100 g/100 mL
Merck 
13,1182
BRN 
3626258
CAS DataBase Reference
590-47-6(CAS DataBase Reference)

Safety Data

Hazard Codes 
Xn
Risk Statements 
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S24/25:Avoid contact with skin and eyes .
S36:Wear suitable protective clothing .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
WGK Germany 
1

HS Code 
29239000

Material Safety Data Sheet(MSDS)

Hazard Information

Chemical Properties
WHITE CRYSTALS OR CRYSTALLINE POWDER
Definition
ChEBI: A hydrate that is the monohydrate form of glycine betaine.
Purification Methods
Crystallise betaine from aqueous EtOH or EtOH/Et2O. The monohydrate loses H2O above 100o. Betaine undergoes internal alkylation to methyl dimethylaminoacetate Purification of Biochemicals — Amino Acids and Peptides above its melting point. It is also prepared by treating the hydrochloride (below) with silver oxide and recrystallising from EtOH/Et2O. [Edsall J Am Chem Soc 66 1767 1943, Leifer & Lippincott J Am Chem Soc 79 5098 1957, for pK see Grob et al. Chem and Ind (London) 1222 1955, Beilstein 4 III 1127, 4 IV 2369.]

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