BEC

Modify Date: 2025-09-22 18:01:04

BEC structure	Common Name	BEC
	CAS Number	63107-40-4	Molecular Weight	193.029
	Density	1.4±0.1 g/cm3	Boiling Point	451.6±55.0 °C at 760 mmHg
	Molecular Formula	C₅H₁₂BNO₄S	Melting Point	N/A
	MSDS	N/A	Flash Point	226.9±31.5 °C

Name	(2R)-2-amino-3-(2-boronoethylsulfanyl)propanoic acid
Synonym	More Synonyms

Density	1.4±0.1 g/cm3
Boiling Point	451.6±55.0 °C at 760 mmHg
Molecular Formula	C₅H₁₂BNO₄S
Molecular Weight	193.029
Flash Point	226.9±31.5 °C
Exact Mass	193.058014
PSA	129.08000
LogP	0.20
Vapour Pressure	0.0±2.5 mmHg at 25°C
Index of Refraction	1.549
InChIKey	OTJHLDXXJHAZTN-BYPYZUCNSA-N
SMILES	NC(CSCCB(O)O)C(=O)O

Hazard Codes	Xi

L-Cysteine, S-(2-boronoethyl)-

S-(2-boronethyl)-L-cysteine

S-[2-(Dihydroxyboryl)ethyl]-L-cysteine

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Shanghai Nianxing Industrial Co., Ltd
China
Product Name: BEC
Price: Check
Purity: 98.0%
Delivery: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: (S)-2-AMINO-3-(2-BORONOETHYLTHIO)PROPANOIC ACID
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Delivery: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

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