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Check Digit Verification of cas no

The CAS Registry Mumber 42969-84-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,9,6 and 9 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 42969-84:
(7*4)+(6*2)+(5*9)+(4*6)+(3*9)+(2*8)+(1*4)=156
156 % 10 = 6
So 42969-84-6 is a valid CAS Registry Number.

42969-84-6SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name	6,8-dichloro-2H-chromene

1.2 Other means of identification

Product number	-
Other names	6,8-Dichlor-2H-1-benzopyran

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:42969-84-6 SDS

42969-84-6Upstream product

17061-90-4 2,4-dichloro-1-(prop-2-yn-1-yloxy)benzene

42969-84-6Downstream Products

42969-84-6Relevant articles and documents

CLAISEN REARRANGEMENT OF ARYL PROPARGYL ETHERS IN POLY(ETHYLENE GLYCOL) - A REMARKABLE SUBSTITUENT AND SOLVENT EFFECT

Rao, Usha,Balasubramanian, K. K.

, p. 5023 - 5024 (1983)

The Claisen rearrangement of aryl propargyl ethers in poly(ethylene glycol)-200 at 220 o C affords products in good yields.Aryl propargyl ethers containing electron donating groups yield (2H)-benzopyrans and those containing electron withdrawing groups yield 2-methylbenzofurans.

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CAS

42969-84-6