(+)-Tubocurarine chloride | CAS:57-94-3

(+)-Tubocurarine chloride

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(+)-Tubocurarine chloride Description

Source:	From Scaphiopus holbrooki
Solvent:	Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Storage:	Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months(2-8C). Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour. Need more advice on solubility, usage and handling? Please email to: service@chemfaces.com
After receiving:	The packaging of the product may have turned upside down during transportation, resulting in the natural compounds adhering to the neck or cap of the vial. take the vial out of its packaging and gently shake to let the compounds fall to the bottom of the vial. for liquid products, centrifuge at 200-500 RPM to gather the liquid at the bottom of the vial. try to avoid loss or contamination during handling.

Structure Identification:

British Journal of Pharmacology, 1982, 75(3):503-512.

The ionization of morphine, hydroxyamphetamine and (+)-tubocurarine chloride and a new method for calculating zwitterion constants.[Reference: WebLink]

METHODS AND RESULTS:
1 An improved method for estimating the zwitterion constants of phenolic amines is described which involves the exploratory least-squares fit of absorbance (at a suitable wavelength) to pH, starting with estimates of pK1 and pK2 obtained electrometrically. 2 With the method it is possible to see that hydroxyamphetamine (alpha-methyltyramine) has a higher zwitterion constant than tyramine and the zwitterion constants of both compounds are lower at 37 degree C than at 25 degree C. 3 The zwitterion constant of morphine is not reduced by raising the temperature from 25 degree to 37 degree C and the effect of temperature is much greater in compounds with a primary or secondary amino group than with those containing a tertiary amino group. Some zwitterions may be stabilized by hydration and their formation will be reduced by a rise in temperature which will break up water structure. 4 From electrometric titrations with (+)-Tubocurarine chloride in 0.1 M NaCl estimates of pK1, pK2 and pK3 were 7.6, 8.65 and 9.65 at 25 degree C and 7.4, 8.6 and 9.7 at 37 degree C, compared with 7.8, 8.85 and 9.75 given by Perrin (1980).
CONCLUSIONS:
However, the effects of pH on absorbance show that the phenolic groups lose a proton before the ammonium group so there is extensive zwitterion formation which is probably greater at 25 degree than at 37 degree C. the p-phenolic group (position 13) probably ionizes first with the phenate form stabilized by hydration involving water molecules and the protonated form of the (1-) ammonium group.

Product Name	(+)-Tubocurarine chloride
Price:
CAS No.:	57-94-3
Catalog No.:	CFN70414
Molecular Formula:	C₃₇H₄₁ClN₂O₆
Molecular Weight:	645.2 g/mol
Purity:	>=98%
Type of Compound:	Alkaloids
Physical Desc.:	Powder
Source:	From Scaphiopus holbrooki
Solvent:	Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.
Download:	COA MSDS
Similar structural:	Comparison
Guestbook:

Size /Price /Stock	10 mM * 100 uL in DMSO / Inquiry / In-stock 10 mM * 1 mL in DMSO / Inquiry / In-stock
Related Libraries	Alkaloids Compound Library

	1 mg	5 mg	10 mg	20 mg	25 mg
1 mM	1.5499 mL	7.7495 mL	15.4991 mL	30.9981 mL	38.7477 mL
5 mM	0.31 mL	1.5499 mL	3.0998 mL	6.1996 mL	7.7495 mL
10 mM	0.155 mL	0.775 mL	1.5499 mL	3.0998 mL	3.8748 mL
50 mM	0.031 mL	0.155 mL	0.31 mL	0.62 mL	0.775 mL
100 mM	0.0155 mL	0.0775 mL	0.155 mL	0.31 mL	0.3875 mL

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CFN96236	Reynoutrin	549-32-6	434.4	C₂₀H₁₈O₁₁
CFN92884	Euphorbia factor L2	218916-51-9	642.7	C₃₈H₄₂O₉
CFN99286	Carabrolactone A	1187925-30-9	282.3	C₁₅H₂₂O₅