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158420-81-6

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158420-81-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 158420-81-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,4,2 and 0 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 158420-81:
(8*1)+(7*5)+(6*8)+(5*4)+(4*2)+(3*0)+(2*8)+(1*1)=136
136 % 10 = 6
So 158420-81-6 is a valid CAS Registry Number.

158420-81-6Relevant articles and documents

Chemical Synthesis of Nod-Rm-1: the Nodilation Factor Involved in Rhizobium meliloti-legume Symbiosis

Wang, Lai-Xi,Li, Chuan,Wang, Qin-Wei,Hui, Yong-Zheng

, p. 621 - 628 (2007/10/02)

A total synthesis of the sulfated lipotetrasaccharide (NodRm-1) is described.First, the disaccharide glycosyl donor - O-(2-azido-3,4,6-tri-O-benzyl-2-deoxy-β-D-glucopyranosyl)-(1->4)-3,6-di-O-benzyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl chloride 3a or

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