Welcome to LookChem.com Sign In|Join Free

CAS

  • or

133575-76-5

Post Buying Request

133575-76-5 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier

133575-76-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 133575-76-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,5,7 and 5 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 133575-76:
(8*1)+(7*3)+(6*3)+(5*5)+(4*7)+(3*5)+(2*7)+(1*6)=135
135 % 10 = 5
So 133575-76-5 is a valid CAS Registry Number.

133575-76-5Relevant articles and documents

A PRACTICAL SYNTHESIS, OPTICAL RESOLUTION AND DETERMINATION OF ABSOLUTE CONFIGURATION OF ENANTIOMERICALLY PURE 1S,2R-(+)- AND 1R,2S-(-)-CIS-2-(1-PYRROLIDINYL)CYCLOHEXYLAMINES: IMPORTANT PRECURSORS FOR A NEW CLASS OF SIGMA-RECEPTOR LIGANDS AND ANTICONVULSANT DRUGS

Costa, Brian R. de,Radesca, Lilian

, p. 1837 - 1846 (2007/10/02)

Enantiomerically pure (+)- and (-)-cis-2-(1-pyrrolidinyl)cylohehexylamines ((+)- and (-)-4) were prepared starting with (+/-)-trans-2-aminocyclohexanol ((+/-)-5).The key step in the generation of the cis stereochemistry of (+)- and (-)-4 empolyed catalytic hydrogenation of the enamine mixture generated from condensation of pyrrolidine with (+/-)-2-(benzamido)cyclohexanone ((+/-)-7).An efficient optical resolution of (+/-)-4 was achieved through two recrystallizations of the mandelate salts.The absolute configuration of (+)- and (-)-4 was assigned as 1S,2R and 1R,2S,respectively, based on conversion of (-)-4 to and comparison with the N-methyl derivative (-)-13 of known 1R,2S absolute configuration.

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 133575-76-5