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

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 4-Ethylphenylboronic acid
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

63139-21-9

63139-21-9 structure

63139-21-9 structure

Name: (4-Ethylphenyl)boronic acid
Chemical Name: 4-Ethylphenylboronic acid
CAS Number: 63139-21-9
Molecular Formula: C₈H₁₁BO₂
Molecular Weight: 149.983
Catalog: Chemical reagent Organic reagent Boric acid
Create Date: 2018-07-10 11:05:40
Modify Date: 2026-07-03 18:08:49

Name	4-Ethylphenylboronic acid
Synonyms	Ethylphenyl)boronic acid 4-ETHYLBENZENEBORONIC ACID;N-C2H5;4-ETHYLPHENYL BORONIC ACID P-ETHYLPHENYLBORONIC ACID 4-Ethylphenylboronic Acid (contains vying amounts of Anhydride) RECHEM AH PB 0197 MFCD00859377 4-Ethylbenzeneboronicacid 4-Ethylpenylboronic acid 13C6]-4-Ethylphenylboronic acid 4-ETHYLCYCLOHEXANAMINE 4-Ethylphenylboronicaci 4-ETHYLBENZENEBORONIC ACID 4-ETHYLPHENYLBORONICACID n-C2H5 4-Ethylphenylboronic 4-Ethylphenylboronic acid 13C6 Boronic acid, B-(4-ethylphenyl) 4-ETHYLPHENYLBORONIC ACID Boronic acid, (4-ethylphenyl)

Density	1.1±0.1 g/cm3
Boiling Point	285.1±33.0 °C at 760 mmHg
Melting Point	150-155 °C(lit.)
Molecular Formula	C₈H₁₁BO₂
Molecular Weight	149.983
Flash Point	126.2±25.4 °C
Exact Mass	150.085205
PSA	40.46000
LogP	2.58
Vapour Pressure	0.0±0.6 mmHg at 25°C
Index of Refraction	1.521
Storage condition	0-6°C

Personal Protective Equipment	Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
Hazard Codes	Xi:Irritant
Risk Phrases	R36/37/38
Safety Phrases	S37/39-S26
RIDADR	NONH for all modes of transport
WGK Germany	3
HS Code	2931900090

Precursor 6
121-43-7 1585-07-5 688-74-4 13195-76-1
100-41-4 10294-33-4
DownStream 10
5731-13-5 5707-44-8 20371-61-3 5730-92-7
101002-44-2 13049-40-6 123-07-9 17789-00-3
21345-28-8 113583-80-5

HS Code	2931900090
Summary	2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0%

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