Identification | Back Directory | [Name]
Lauryl betaine | [CAS]
683-10-3 | [Synonyms]
ddn Ammon c12bet AM 301 anonbl bisterml amipol6s AMogen S jbetaine desimexi 683-10-3 Anon BL-SF anhitol24b productddn swanolam301 amphitol24b Genagen LAB MakaM LB 35 culveramcdg laurylbetain Lonzaine 12S anfotericolb amphitol20bs ambitericd40 nissananonbl EMPIGEN BB(R) EMPIGEN(R) BB lauryl betaine Laruyl Betaine lauryl-n-betaine n-Dodecyl betaine LAURYLDIMETHYLBETAIN Adeka AMphote AB 35L EMPIGEN BB DETERGENT Lauryldimethylbetaine dimethyllaurylbetaine DiMethyldodecylbetaine EMPIGEN(R) BB DETERGENT Lauryl betaine 683-10-3 DODECYL DIMETHYL BETAINE lauryl-n-methylsarcosine BS 12 (betaine surfactant) 2-(Dodecyldimethylammonio) n,n-dimethyldodecylbetaine Amphiprotic surfactanBS-12 C12H25N(CH3)2CH2CH(OH)CH2SO3 Dodecyldimethylaminioacetate lauryldimethylammonioacetate n,n-dimethyl-n-dodecylglycine N,N-Dimethyl-N-dodecylbetaine N-DODECYL-N,N-DIMETHYLGLYCINE BS12 DODECYLE DIMETHYL BETAINE glycine,dodecyldimethylbetaine N-Lauryl-N,N-diMethyl-a-betaine LAURYL DIMETHYLAMINOACETIC ACID (dodecyldimethylammonio)acetate Dodecyl Dimethyl Betaine (BS-12) betainelauryldimethylaminoacetate 2-(DodecyldiMethylaMMonio)acetate N,N diMethyl-n-laurylbetaine (LNB) LauryldiMethylaMinoacetate betaine Lauryl betaine ISO 9001:2015 REACH 3-AZONIA-3,3-DIMETHYLPENTADECANOATE LAURYLDIMETHYLAMINOACETICACIDBETAINE 2-[dodecyl(dimethyl)azaniumyl]acetate N,N-DIMETHYL-N-DODECYLGLYCINE BETAINE Laury dimethylaminoacetic acid betaine N,N-DiMethyl-N-laurylglycine Inner Salt Dimethyllauryl(carboxylatomethyl)aminium (carboxylatomethyl)dodecyldimethylammonium 35% Lauryl Dimethylaminoacetic Acid Solution N-(ALKYL C10-C16)-N,N-DIMETHYLGLYCINE BETAINE carboxymethyl-dodecyl-dimethyl-ammonium betaine N,N-Dimethyl-N-(carboxylatomethyl)laurylaminium N,N-Dimethyl-N-(carboxylatomethyl)dodecylaminium sodium 2-[lauryl(dimethyl)ammonio]acetate chloride N,N-Dimethyl-N-(carboxylatomethyl)-1-dodecanaminium 2-(Dodecyldimethylammonio)acetate, 30% aqueous (w/w) sodium 2-[dodecyl(dimethyl)azaniumyl]acetate chloride Carboxy betaine 683-10-3 N-Dodecyl-N,N-Dimethylglycine sodium 2-[dodecyl(dimethyl)azaniumyl]ethanoate chloride 1-Dodecanaminium,N-(carboxymethyl)-N,N-dimethyl-,innersalt N-(Carboxymethyl)-N,N-dimethyl-1-dodecanaminium, inner salt ammonium,(carboxymethyl)dodecyldimethyl-,hydroxide,innersalt N-(CarboxyMethyl)-N-lauryldiMethylaMMoniuM Hydroxide Inner Salt 1-dodecanaminium,n-(carboxymethyl)-n,n-dimethyl-,hyroxide,innersalt 1-dodecanaminium,n-(carboxymethyl)-n,n-dimethyl-,hydroxide,innersalt | [EINECS(EC#)]
266-368-1 | [Molecular Formula]
C16H33NO2 | [MDL Number]
MFCD00084742 | [MOL File]
683-10-3.mol | [Molecular Weight]
271.44 |
Chemical Properties | Back Directory | [Boiling point ]
414.52°C (rough estimate) | [density ]
1.04 g/mL at 20 °C
| [vapor pressure ]
16.796hPa at 21.1℃ | [refractive index ]
1.4545 (estimate) | [storage temp. ]
Sealed in dry,Room Temperature | [solubility ]
Chloroform (Slightly), DMSO (Slightly, Heated), Methanol (Slightly) | [form ]
Solid | [color ]
White to Off-White | [Specific Gravity]
1.03 | [Water Solubility ]
464g/L at 25℃ | [λmax]
λ: 260 nm Amax: ≤0.20 λ: 280 nm Amax: ≤0.15 | [BRN ]
3670807 | [Stability:]
Hygroscopic | [LogP]
0.07 at 25℃ | [Uses]
lauryl betaine is a skin-conditioning agent. In hair care, it is used as an anti-static conditioning agent and a foam booster. | [EPA Substance Registry System]
1-Dodecanaminium, N-(carboxymethyl)-N,N-dimethyl-, inner salt(683-10-3) |
Hazard Information | Back Directory | [Synthesis]
General procedure for the synthesis of lauryl betaine from dodecanol and methyl 2-(dimethylamino)acetate:
1. Preparation of lauryl N,N-dimethylglycinate: in a 1 L three-necked flask fitted with a Dean-Stark separator, methyl 2-dimethylaminoacetate (189 g; 1.61 mol; 1.5 eq.), lauryl alcohol (200 g; 1.07 mol) and Novozym 435 (20 g) were added. Subsequently 80 ml of heptane was added as solvent. The reaction mixture was heated in an oil bath at 65 °C and the system pressure was adjusted to about 110 mm Hg to promote efficient separation of the heptane/methanol azeotrope. After 5 hours of reaction, 99.1% conversion of the product was confirmed by NMR analysis. Upon completion of the reaction, the reaction mixture was filtered to remove the enzyme catalyst, the enzyme catalyst was washed with heptane, and the filtrates were combined and concentrated to afford 289 g of lauryl N,N-dimethylamino glycinate in 99% yield.
Product Characterization:
1H NMR (500MHz, CDCl3) δ 4.13 (t, 2H); 3.16 (s, 2H); 2.35 (s, 6H); 1.64 (m, 2H); 1.26 (s, 18H); 0.88 (t, 3H).
HPLC analytical conditions: 150 × 4.6 mm Zorbax SB-C8 column, mobile phase initially 75:25 (v:v) methanol:water (containing 0.1% trifluoroacetic acid), gradient to 100% methanol in 1 min, hold for 9 min, ELSD detector, retention time (tR) of 5.2 min. | [References]
[1] Patent: WO2017/48528, 2017, A1. Location in patent: Paragraph 0170-0173 |
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