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134038-71-4

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134038-71-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 134038-71-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,0,3 and 8 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 134038-71:
(8*1)+(7*3)+(6*4)+(5*0)+(4*3)+(3*8)+(2*7)+(1*1)=104
104 % 10 = 4
So 134038-71-4 is a valid CAS Registry Number.

134038-71-4Downstream Products

134038-71-4Relevant articles and documents

Total synthesis of the biphenomycins; II. Synthesis of protected (2S,4R)-4-hydroxyornithines

Schmidt,Meyer,Leitenberger,Stabler,Lieberknecht

, p. 409 - 413 (1991)

Improved synthetic methods for the preparation of three differently protected (2S,4R)-4-hydroxyornithine (10, 16, 24) have been developed which obviously can be used for the construction of the other stereoisomers. Formation of the corresponding α,β-dideh

The Synthesis of Biphenomycin B

Schmidt, Ulrich,Meyer, Regina,Leitenberger, Volker,Lieberknecht, Albrecht,Griesser, Helmut

, p. 275 - 277 (2007/10/02)

Biphenomycin B, a highly potent antibiotic against Gram-negative, β-lactam-resistant bacteria, which was previously isolated from culture filtrates of Streptomyces griseorubiginosus No. 43708, has now been synthesized.

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