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178977-57-6

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178977-57-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 178977-57-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,8,9,7 and 7 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 178977-57:
(8*1)+(7*7)+(6*8)+(5*9)+(4*7)+(3*7)+(2*5)+(1*7)=216
216 % 10 = 6
So 178977-57-6 is a valid CAS Registry Number.

178977-57-6Downstream Products

178977-57-6Relevant articles and documents

Synthesis and cytotoxicity studies of new cryptophycin analogues

Wen, Lu Liu,Jian, Cun Zhang,Fa, Qin Jiang,Fu, Lei

experimental part, p. 577 - 583 (2009/12/24)

Two analogues of cryptophycin were synthesized and biologically evaluated for their in-vitro cytotoxicities against several solid tumors and leukemia cell lines. The results revealed that both analogues exhibited a broad range of cytotoxic activity with observed IC50 values in the μM-range, and compound 4 was more effective than compound 3 in most assays studied.

Total synthesis of cryptophycin 3

Danner, Paulami,Bauer, Matthias,Phukan, Prodeep,Maier, Martin E.

, p. 317 - 325 (2007/10/03)

The depsipeptide cryptophycin 3 (5) and the cryptophycin analogue 43 were prepared from the corresponding four subunits, The tripeptide analogue 34 was acquired from the starting amino ester 33, which contains fragments D and C. After extension at the car

Total Synthesis of Cryptophycins-1, -3, -4, -24 (Arenastatin A), and -29, Cytotoxic Depsipeptides from Cyanobacteria of the Nostocaceae

White, James D.,Hong, Jian,Robarge, Lonnie A.

, p. 6206 - 6216 (2007/10/03)

A convergent synthesis of cryptophycins has been developed in which (5S,6R)-5-hydroxy-6-methyl-8-phenylocta-2(E),7(E)-dienoic acid (A) is coupled with an amino acid segment (B). Two stereo-selective routes to A are described, the first employing allylatio

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