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77972-18-0

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77972-18-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77972-18-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,9,7 and 2 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 77972-18:
(7*7)+(6*7)+(5*9)+(4*7)+(3*2)+(2*1)+(1*8)=180
180 % 10 = 0
So 77972-18-0 is a valid CAS Registry Number.

77972-18-0SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name 5-(2-hydroxyphenyl)-2,4-Imidazolidinedione

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:77972-18-0 SDS

77972-18-0Downstream Products

77972-18-0Relevant articles and documents

The use of Lewis acids in the synthesis of 5-arylhydantoins

Cativiela, Carlos,Fraile, Jose M.,Garcia, Jose I.,Lafuente, Gustavo,Mayoral, Jose A.,Tahir, Rachid,Pallares, Antonio

, p. 192 - 196 (2007/10/03)

Different Lewis acids are able to promote the Friedel-Crafts reaction between 5-bromohydantoin and aromatic compounds. In the case of phenol, mixtures of ortho and para isomers are always obtained, with Mg(ClO4) 2 leading to the best selectivity. However, the best overall yield of 5-(hydroxyphenyl)hydantoin is obtained with YbCl3. This method can be extended to other aromatic systems such as anisole and thiophene. These reactions give similar yields but proceed with total selectivity to 5-(4-methoxyphenyl)hydantoin and 5-(2-thiophenyl)hydantoin, respectively. The cationic exchange of MgII and YbIII on anionic solid supports allows the preparation of very efficient heterogeneous catalysts for this reaction (productivity up to 600 mol of hydantoin per mole of Mg). These catalysts have practical advantages in that they can be recycled and reused.

A new method for 5-(4-hydroxyphenyl)hydantoin synthesis

Ohashi,Takahashi,Nagamachi,et al.

, p. 831 - 838 (2007/10/02)

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