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620634-44-8

620634-44-8

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620634-44-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 620634-44-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,2,0,6,3 and 4 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 620634-44:
(8*6)+(7*2)+(6*0)+(5*6)+(4*3)+(3*4)+(2*4)+(1*4)=128
128 % 10 = 8
So 620634-44-8 is a valid CAS Registry Number.

620634-44-8SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-azulen-1-yl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

1.2 Other means of identification

Product number -
Other names 1,3,2-Dioxaborolane,2-(1-azulenyl)-4,4,5,5-tetramethyl

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:620634-44-8 SDS

620634-44-8Downstream Products

620634-44-8Relevant articles and documents

Blue Amino Acids Derived from Azulen-1-ylboronic Acid Pinacol Ester via the Petasis Reaction

Murafuji, Toshihiro,Tasaki, Yusuke,Fujinaga, Masayuki,Tao, Keisuke,Kamijo, Shin,Ishiguro, Katsuya

, p. 1037 - 1042 (2017/02/24)

Azulen-1-ylboronic acid pinacol ester undergoes a three-component Petasis reaction with amines and glyoxylic acid hydrate to give azulenylglycine derivatives in good yields. The progress of the reaction is indicated by a characteristic color change from violet to blue due to the altered π-conjugation of the azulene chromophore. The azulenylboronic ester is more reactive than its phenyl counterpart and even 2-styryl- and 2-thienylboronic pinacol esters, which have a strong electron-donating organyl group on boron. These results reflect the unique π-electron system of non-alternant azulene.

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