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Check Digit Verification of cas no

The CAS Registry Mumber 61858-02-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,1,8,5 and 8 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 61858-02:
(7*6)+(6*1)+(5*8)+(4*5)+(3*8)+(2*0)+(1*2)=134
134 % 10 = 4
So 61858-02-4 is a valid CAS Registry Number.

61858-02-4SDS

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	ethyl 2-oxo-1-oxaspiro[4.4]nonane-4-carboxylate

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).

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61858-02-4Upstream product

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61858-02-4Relevant articles and documents

Cerium metal-mediated Reformatsky-type reaction with ethyl bromosuccinate for the synthesis of novel paraconic acid analogs

Rodrigues, Shirley M. M.,Nardini, Viviani,Constantino, Mauricio G.,Da Silva, Gil Valdo J.

, p. 6136 - 6137,2 (2012)

The treatment of cerium metal with ethyl bromosuccinate (1) forms the stabilized organolanthanoid intermediate (2), which reacts with carbonyl compounds in a Reformatsky-type reaction, under mild conditions, to produce functionalized γ-substituted paraconic acids (4) in good yields.

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CAS

61858-02-4