Welcome to LookChem.com Sign In|Join Free

CAS

  • or

16281-93-9

Post Buying Request

16281-93-9 Suppliers

Recommended suppliersmore

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

16281-93-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 16281-93-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,2,8 and 1 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 16281-93:
(7*1)+(6*6)+(5*2)+(4*8)+(3*1)+(2*9)+(1*3)=109
109 % 10 = 9
So 16281-93-9 is a valid CAS Registry Number.

16281-93-9Relevant articles and documents

Design and synthesis of a trifunctional chiral porphyrin with C2 symmetry as a chiral recognition host for amino acid esters

Mizutani, Tadashi,Ema, Tadashi,Tomita, Takashi,Kuroda, Yasuhisa,Ogoshi, Hisanobu

, p. 4240 - 4250 (2007/10/02)

An intrinsic chiral recognition host, (R,R)- or (S.S)-[trans-5,15-bis(2-hydroxyphenyl)-10-{2,6-bis((methoxycarbonyl)m ethyl)phenyl}-2,3,17,18-tetraethylporphyrinato]zinc(II) (1), was synthesized by the coupling between (3,3',4,4'-tetraethyl-5,5'-bis(α-hyd

Synthesis of 9-Methoxymethyl-18-methyl-2,11-dithiametacyclophane: a Dithiametacyclophane with a Protected Internal Benzylic Functional Group

Lai, Yee-Hing,Tan, Quee-May

, p. 1783 - 1788 (2007/10/02)

A synthetic route to a dithiametacyclophane with a benzylic functional (methoxymethyl) group at C9 is described.The benzylic function however had to be introduced at a later stage in the synthetic scheme to optimize the overall yield.Only the anti isomer of the desired dithiacyclophane (7) was isolated.The entire methoxymethyl group lies within the shielding zone of the opposite benzene ring as indicated in the 1H n.m.r. spectrum.Attempts to convert anti-(7) into the novel aromatic system (5b) by a rearrangement-elimination sequence however failed.

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 16281-93-9