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7185-16-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 7185-16-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,1,8 and 5 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 7185-16:
102 % 10 = 2
So 7185-16-2 is a valid CAS Registry Number.



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

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017


1.1 GHS Product identifier

Product name Ruhemann's purple

1.2 Other means of identification

Product number -
Other names azine-bis-indandione

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:7185-16-2 SDS

7185-16-2Downstream Products

7185-16-2Relevant articles and documents

Spectrophotometric determination of gabapentin in pharmaceutical formulations using ninhydrin and π-acceptors

Siddiqui, Farhan Ahmed,Arayne, M. Saeed,Sultana, Najma,Qureshi, Faiza,Mirza, Agha Zeeshan,Zuberi, M. Hashim,Bahadur, Saima Sher,Afridi, Nawab Sher,Shamshad, Hina,Rehman, Nadia

, p. 2761 - 2767 (2010)

Simple, rapid and sensitive spectrophotometric procedures are developed for the analysis of gabapentin in pure form as well as in their pharmaceutical formulations. The methods are based on the reaction of gabapentin as n-electron donor with ninhydrin and

Kinetics of interaction of histidine and histidine methyl ester with ninhydrin in micellar media

Din, Kabir-Ud,Rafiquee,Akram,Khan, Zaheer

, p. 103 - 111 (2007/10/03)

Kinetics of the interaction of histidine and histidine methyl ester with ninhydrin under varying concentrations of reactants, anionic (sodium dodecyl sulphate, SDS), cationic (cetyltrimethylammonium bromide, CTAB) and non-ionic (Triton X-100, TX-100) micelles have been carried out. Rate of the reaction was found to be independent of the initial concentration of histidine (and histidine methyl ester) but was dependent on [Ninhydrin]. The SDS micelles had no effect on the rate of the reaction. In the presence of the CTAB micelles a small enhancement in the rate was observed. The rate - [CTAB] profile showed that the increase in [CTAB] increased the rate up to a maximum value and a further increase had a decreasing effect on the rate. The rate was enhanced by TX-100 also but, unlike CTAB micelles, TX-100 possessed a curve without peak for the rate - [TX-100] profile. The following rate equation was obeyed by the reaction in CTAB and TX-100 micelles: 1kΨ = kw[N]T + (km KS - kw) [Dn] MNS/1 + KS [Dn] Values of kw, km, and KS were evaluated and are reported herein.

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