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178861-37-5

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178861-37-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 178861-37-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,8,8,6 and 1 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 178861-37:
(8*1)+(7*7)+(6*8)+(5*8)+(4*6)+(3*1)+(2*3)+(1*7)=185
185 % 10 = 5
So 178861-37-5 is a valid CAS Registry Number.

178861-37-5Relevant articles and documents

β-Phenylselenoalanine as a dehydroalanine precursor-efficient synthesis of alternariolide (AM-toxin I)

Hashimoto, Kimiko,Sakai, Mitsuru,Okuno, Toshikatsu,Shirahama, Haruhisa

, p. 1139 - 1140 (1996)

Alternariolide (AM-toxin) is synthesized in 44% overall yield from L-2-amino-5-(4-methoxyphenyl)pentanoic acid; D-β-phenylselenoalanine is used as the dehydroalanine precursor.

Synthesis of optically pure β-phenylselenoalanine through serine-β-lactone: A useful precursor of dehydroalanine

Sakai, Mitsuru,Hashimoto, Kimiko,Shirahama, Haruhisa

, p. 319 - 324 (2007/10/03)

Optically pure L- and D-β-phenylselenoalanines (PhSeAla), useful precursors of dehydroalanine, were synthesized from L- and D-serine-β-lactone. Elimination reactions of the phenylseleno group to form the dehydroalanine were examined.

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