Nonnatural amino acid 3-(4-thiazolyl)-D,L-alanine hydrochloride and its four intermediates were synthesized, their structures were detenmined by IR,NMR,elementary analysis and melting point.

合了氨基酸3-(4-噻唑基)-D，L-丙氨酸盐酸盐以及三个中间体，其结分别通过红外光谱、核磁共振、元素分析、点等测试手段得到确证。

The structure and working principle of the devices for melting point measurement by means of thin film comparative method of cryoscopy were introduced.

介绍凝固点下降薄层比较法测量点标准物质点的测量装置的工作原理。

Nonnatural amino acid 3-(4-thiazolyl)-D,L-alanine hydrochloride and its four intermediates were synthesized, their structures were detenmined by IR,NMR,elementary analysis and melting point.

合成了非天然氨基酸3-(4-噻唑基)-D，L-丙氨酸盐酸盐以及三个中，结构分别通过红外光谱、核磁共振、元素分析、点等测试手段得到确证。

The structure and working principle of the devices for melting point measurement by means of thin film comparative method of cryoscopy were introduced.

介绍凝固点下降薄法测量点标准物质点的测量装置的构成与工作原理。

Nonnatural amino acid 3-(4-thiazolyl)-D,L-alanine hydrochloride and its four intermediates were synthesized, their structures were detenmined by IR,NMR,elementary analysis and melting point.

合成了非天然氨基酸3-(4-噻唑基)-D，L-丙氨酸盐酸盐以及三个中间体，其结构分别通过红外光谱、核磁共振、元素分析、点等测试手段得到确证。

The structure and working principle of the devices for melting point measurement by means of thin film comparative method of cryoscopy were introduced.

介绍凝固点下降薄层比较法测量点标准物质点的测量装置的构成与工作原理。

Nonnatural amino acid 3-(4-thiazolyl)-D,L-alanine hydrochloride and its four intermediates were synthesized, their structures were detenmined by IR,NMR,elementary analysis and melting point.

合成了非天然氨基酸3-(4-噻唑基)-D，L-丙氨酸盐酸盐以及三个中间体，其结构分别通过红外光谱、核磁共振、元素分析、点等测试手段得到确证。

The structure and working principle of the devices for melting point measurement by means of thin film comparative method of cryoscopy were introduced.

介绍凝固点下降薄层比较法测量点标准物质点的测量装置的构成与工作原理。

Nonnatural amino acid 3-(4-thiazolyl)-D,L-alanine hydrochloride and its four intermediates were synthesized, their structures were detenmined by IR,NMR,elementary analysis and melting point.

合成了非天然氨基酸3-(4-噻唑基)-D，L-丙氨酸盐酸盐以中间体，其结构分别通过红外光谱、核磁共振、元素分析、点等试手段得到确证。

The structure and working principle of the devices for melting point measurement by means of thin film comparative method of cryoscopy were introduced.

介绍凝固点下降薄层比较法点标准物质点的装置的构成与工作原理。

Nonnatural amino acid 3-(4-thiazolyl)-D,L-alanine hydrochloride and its four intermediates were synthesized, their structures were detenmined by IR,NMR,elementary analysis and melting point.

合成了非天然氨基酸3-(4-噻唑基)-D，L-丙氨酸盐酸盐以及三个中间体，其结构过红外光谱、核磁共振、元素析、等测试手段得到确证。

The structure and working principle of the devices for melting point measurement by means of thin film comparative method of cryoscopy were introduced.

介绍凝降薄层比较法测量标准物质的测量装置的构成与工作原理。

Nonnatural amino acid 3-(4-thiazolyl)-D,L-alanine hydrochloride and its four intermediates were synthesized, their structures were detenmined by IR,NMR,elementary analysis and melting point.

合成了非天然氨基酸3-(4-噻唑基)-D，L-丙氨酸盐酸盐以及三个中间体，其结构分别通过红外光谱、核、元素分析、点等测试手到确证。

The structure and working principle of the devices for melting point measurement by means of thin film comparative method of cryoscopy were introduced.

介绍凝固点下降薄层比较法测量点标准物质点的测量装置的构成与工作原理。

Nonnatural amino acid 3-(4-thiazolyl)-D,L-alanine hydrochloride and its four intermediates were synthesized, their structures were detenmined by IR,NMR,elementary analysis and melting point.

合成了非天然氨基酸3-(4-噻唑基)-D，L-丙氨酸盐酸盐以及三个中间体，其结构分别通过红外光谱、核磁共振、元素分析、点等测试手段得到确证。

The structure and working principle of the devices for melting point measurement by means of thin film comparative method of cryoscopy were introduced.

介绍凝固点下降薄层比较法测量点标准物质点的测量装置的构成与工作原理。

Nonnatural amino acid 3-(4-thiazolyl)-D,L-alanine hydrochloride and its four intermediates were synthesized, their structures were detenmined by IR,NMR,elementary analysis and melting point.

合成了非天然氨基酸3-(4-噻唑基)-D，L-丙氨酸盐酸盐以及三个中间体，其结构分别通过红外光谱、核磁共振、元素分析、点等测试手段得到确证。

The structure and working principle of the devices for melting point measurement by means of thin film comparative method of cryoscopy were introduced.

介绍凝固点下降薄层比较法测量点标准物质点的测量装置的构成与工作原理。