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Check Digit Verification of cas no

The CAS Registry Mumber 83957-89-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,9,5 and 7 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 83957-89:
(7*8)+(6*3)+(5*9)+(4*5)+(3*7)+(2*8)+(1*9)=185
185 % 10 = 5
So 83957-89-5 is a valid CAS Registry Number.

83957-89-5SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name	5-(hydroxymethyl)-4-isopropyl-1-methyl-2-phenyl-1H-pyrazol-3(2H)-one

1.2 Other means of identification

Product number	-
Other names	5-Hydroxymethyl-4-isopropyl-1-methyl-2-phenyl-1,2-dihydro-pyrazol-3-one

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:83957-89-5 SDS

83957-89-5Upstream product

83957-89-5Downstream Products

83957-89-5Relevant articles and documents

Propyphenazone-based analogues as prodrugs and selective cyclooxygenase-2 inhibitors

Radwan, Mohamed F.,Dalby, Kevin N.,Kaoud, Tamer S.

supporting information, p. 983 - 988 (2014/12/10)

Improving the gastrointestinal safety profile of nonsteroidal anti-inflammatory drugs (NSAIDs) is an important goal. Herein, we report two strategies, using the nonacidic propyphenazone structure, with potential to overcome the side effects of NSAIDs. Pro

Biological and metabolic study of naproxen-propyphenazone mutual prodrug

Sheha, Mahmoud,Khedr, Alaa,Elsherief, Hosny

, p. 121 - 130 (2007/10/03)

Naproxen-propyphenazone (NAP-PP) esters were synthesized as prodrugs with the aim of improving the therapeutic index through prevention of gastrointestinal irritation and bleeding. The structures of the synthesized NAP-PP hybrid esters were confirmed by I

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83957-89-5