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639-81-6

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639-81-6 Usage

Uses

Ergotaminine is the Epimer of Ergotamine (E599550), a antimigraine agent.

Purification Methods

It is less soluble than ergotamine, and its solubility is 0.1% in boiling ethanol and 0.07% in methanol. [Stoll Helv Chim Acta 28 1299 and 1306 1945, Beilstein 25 II 860, 862, 25 III/IV 966.]

Check Digit Verification of cas no

The CAS Registry Mumber 639-81-6 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,3 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 639-81:
(5*6)+(4*3)+(3*9)+(2*8)+(1*1)=86
86 % 10 = 6
So 639-81-6 is a valid CAS Registry Number.

639-81-6SDS

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 (5'α,8α)-5'-Benzyl-12'-hydroxy-2'-methyl-3',6',18-trioxoergotam

1.2 Other means of identification

Product number -
Other names Ergotaman-3‘,6‘,18-trione, 12‘-hydroxy-2‘-methyl-5‘-(phenylmethyl)-, (5‘-,8-)-

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:639-81-6 SDS

639-81-6Downstream Products

639-81-6Relevant articles and documents

CONTRIBUTIONS TO THE STUDY OF EPIMERIZATION OF POLYPEPTIDIC ERGOT ALKALOIDS AT C-8

Bandula, Rodica,Vasilescu, Marilena

, p. 1189 - 1196 (2007/10/03)

The influence of pH and nature of the solvent upon the epimerization rate of polypeptidic ergot alkaloids (ergotamine, ergocristine, ergocryptine and ergocornine) at C-8 was studied.It was established that, in aqueous solutions, epimerization is minimum within 2.5-4.0 pH range.The first-order rate constants of epimerization in various organic solvents of the alkaloids in question were evaluated; they have shown that the epimerization rate is maximum in methanol, which is the most polar of the solvents tested.Epimerization at C-8 of ergotamine is a first-order reaction over a time interval much shorter than in epimerization of alkaloids from ergotoxine group, more so with methanol as solvent.Ether, chloroform and benzene have ensured an adequate stability.

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