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157888-62-5

157888-62-5

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157888-62-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 157888-62-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,8,8 and 8 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 157888-62:
(8*1)+(7*5)+(6*7)+(5*8)+(4*8)+(3*8)+(2*6)+(1*2)=195
195 % 10 = 5
So 157888-62-5 is a valid CAS Registry Number.

157888-62-5SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 15, 2017

Revision Date: Aug 15, 2017

1.Identification

1.1 GHS Product identifier

Product name Naphtho[1,8-bc]pyran, 2-ethoxy-2,3,3a,4,5,6-hexahydro-, cis- (9CI)

1.2 Other means of identification

Product number -
Other names -

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:157888-62-5 SDS

157888-62-5Downstream Products

157888-62-5Relevant articles and documents

Polycyclic chromans via novel tricyclic-2-phenyl-4H-1,3,2-benzodioxaborins

Bissada, Suzanne,Lau, Cheuk Kun,Bernstein, Michael A.,Dufresne, Claude

, p. 3691 - 3694 (1994)

This paper describes a straightforward synthesis of complex polycyclic chromans. They are prepared from novel tricyclic-2-phenyl-4H-1,3,2-benzodioxaborins via a bicyclic orthoquinone-methide intermediate generated in situ under thermolysis or Lewis acid condition. The dioxaborins react with various allyl trimethylsilanes or with ethyl vinyl ether to give polycyclic chromans after acid cyclization or directly.

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