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65997-85-5

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65997-85-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 65997-85-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,5,9,9 and 7 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 65997-85:
(7*6)+(6*5)+(5*9)+(4*9)+(3*7)+(2*8)+(1*5)=195
195 % 10 = 5
So 65997-85-5 is a valid CAS Registry Number.

65997-85-5Upstream product

65997-85-5Downstream Products

65997-85-5Relevant articles and documents

Formose reactions, XXVIII. Selective formation of 2,4-bis(hydroxymethyl)-3-pentulose in N,N-dimethylformamide-water mixed solvent

Shigemasa,Ueda,Saimoto

, p. 389 - 394 (2007/10/02)

Dihydroxyacetone, DL-glycero-tetrulose, and 2,4-bis(hydroxymethyl)-3-pentulose (2,4-BH-3-P) were favorably formed in a formose reaction by choosing a suitable ratio of water to N,N-dimethylformamide used as solvent or a suitable [thiamine.HCl]/[HCHO] ratio. The formose reaction was strongly affected by the concentration of formaldehyde in the water layer. Under the reaction conditions studied, thiamine decomposed rapidly. 2,4-BH-3-P was isolated from the reaction mixture and characterized by MS, IR, and NMR techniques. A pathway for the formation of 2,4-BH-3-P was also proposed.

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