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: BICYCLO[4.2.0]OCTA-1,3,5,7-TETRAEN-3-YLBORONIC ACID
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

195730-31-5

195730-31-5 structure

195730-31-5 structure

Name: Benzocyclobutene-4-boronic acid
Chemical Name: 4-bicyclo[4.2.0]octa-1(6),2,4,7-tetraenylboronic acid
CAS Number: 195730-31-5
Molecular Formula: C₈H₉BO₂
Molecular Weight: 147.97
Create Date: 2018-04-15 08:00:00
Modify Date: 2026-07-06 19:44:25

Name	4-bicyclo[4.2.0]octa-1(6),2,4,7-tetraenylboronic acid
Synonyms	(−)-Dimethyl D-tartrate cyclobutabenzen-4-ylboronic a 3-bicyclo[4.2.0]octa-1,2,4-trienylboronic acid 4-BBCB D-(-)-Tartaric Acid Dimethyl Ester 4-BBCB Benzocyclobutene-4-boronic acid Bicyclo[4.2.0]octa-1,3,5-triene-3-boronic Acid D-(−)-Tartaric acid dimethyl ester cyclobutabenzen-4-ylboronic acid 4-bicyclo[4.2.0]octa-1,2,4,7-tetraenylboronicaci bicyclo[4.2.0]octa-1,3,5-trien-3-ylboronic acid Dimethyl (2S,3S)-2,3-dihydroxysuccinate meso-tartaric acid, dimethyl ester Dimethyl-D-tartrate (+)-Dimethyl-L-tartrate 4-bicyclo[4.2.0]octa-1,2,4,7-tetraenylboronic acid dimethyl (2S,3S)-2,3-dihydroxybutanedioate DIMETHYL TARTRATE (MESO) benzocyclobutene-4-boronic acid B-Bicyclo[4.2.0]octa-1,3,5-trien-3-ylboronic acid Bicyclo[4.2.0]octa-1,3,5,7-tetraen-3-ylboronic acid Dimethyl D-tartrate Benzocyclobutane-4-boronic acid Dimethyl D-(-)-Tartrate Boronic acid, B-bicyclo[4.2.0]octa-1,3,5-trien-3-yl Dimethyl (2R,3R)-2,3-dihydroxysuccinate

Density	1.4±0.1 g/cm3
Boiling Point	280.0±0.0 °C at 760 mmHg
Molecular Formula	C₈H₉BO₂
Molecular Weight	147.97
Flash Point	95.7±11.7 °C
Exact Mass	148.0695597
PSA	40.46000
LogP	-1.35
Vapour Pressure	0.0±1.3 mmHg at 25°C
Index of Refraction	1.470

HS Code	2931900090

1073-39-8 structure

1073-39-8

~71%

195730-31-5 structure

195730-31-5

Literature: Yang, Jun-Xiao; Ma, Kuo-Yan; Zhu, Fang-Hua; Chen, Wen; Li, Bo; Zhang, Lin; Xie, Ru-Gang Journal of Chemical Research, 2005 , # 3 p. 184 - 186

Precursor 1
1073-39-8
DownStream 0

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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