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41248-20-8

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41248-20-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 41248-20-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,1,2,4 and 8 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 41248-20:
(7*4)+(6*1)+(5*2)+(4*4)+(3*8)+(2*2)+(1*0)=88
88 % 10 = 8
So 41248-20-8 is a valid CAS Registry Number.

41248-20-8SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 13, 2017

Revision Date: Aug 13, 2017

1.Identification

1.1 GHS Product identifier

Product name 3-hydroxybicyclo[2.2.1]heptane-3-carboxylic acid

1.2 Other means of identification

Product number -
Other names Bicyclo[2.2.1]heptane-2-carboxylic acid,2-hydroxy

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:41248-20-8 SDS

41248-20-8Relevant articles and documents

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Wilt,J.W.,Wagner,W.J.

, p. 6135 - 6141 (1968)

-

Method for producing optically active 3-substituted-2-norbornanones and their intermediates

-

, (2008/06/13)

The present invention provides a method for producing optically active 3-substituted-2-norbornanones which are useful as starting materials for several kinds of physiologically active materials, and to their intermediates, optically active 2-hydroxy-2-norbornanecarboxylic acid and to a method for producing these intermediates.

Carbon Participation in the Solvolysis of 6-exo-substituted 2-exo- and 2-endo-Norbornyl p-Toluenesulfonates. Norbornanes Part 5

Fischer, Walter,Grob, Cyril A.,Hanreich, Reinhard,Sprecher, Georg von,Waldner, Adrian

, p. 2298 - 2311 (2007/10/02)

The solvolysis rates and products of the 6-exo-substituted 2-exo- 1a-1u, and 2-endo-norbornyl p-toluenesulfonates 2a-2u, have been determined.In general, the rate constants for 1 and 2 (log k) correlate well with the inductive constants ?qI of the substituents at C(6); however, their sensitivity to ?qI is much larger in the 2-exo-series 1 than in the 2-endo-series 2.This differential transmission of polar effects is the cause of decreasing 2-exo/2-endo rate ratios from 2388 for R=t-C4H9 to 0.37 for R=Br, i.e., with increasing electron attraction by the substituent.The high sensitivity of the rate constants for the 2-exo-p-toluenesulfonates 1 to ?qI indicates an unusually strong inductive interaction between C(6) and the incipient cationic center at C(2).This interaction is ascribed to the participation of the pentacoordinate C(6)-atom, i.e. to 1,3-bridging, a consequence of steric hindrance of nucleophilic solvent participation in norbornanes.Donor substituents enhanche 1,3-bridging, lead to faster reactions and to the formation of 2-exo substitution products.Conversely, acceptor substituents reduce 1,3-bridging, decrease rates and facilitate the formation of 2-endo substitution products.Graded 1,3-bridging is discussed in the light of Winstein's nonclassical ion concept.

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